Once you actually play around with hollow braid for a while and take the time to learn how to make the various connections possible with it youll see why the stuff is so popular. Until you splice lines together and test them for yourself you would never believe how strong the connection is and how much better it is than an actual knot.
BHP Tackle has some of the best information out there on making these connections.
CJ just a quick question. As for doing a windon leader to hollowcore JB. The loop side on the JB, I see people using the latch needle to make a loop and others using a bimini. Do you know if the bimini is just as strong? and if so then the only benefit of the latchneedle loop would be it is sleeker looking?
You know I really cant tell you if the Bimini is as strong I dont mess with loop to loop very much. Even when building heavy windons I use the basic splice. I would think that the Bimini would be a good contender for a strength test but like you said the twisted up Bimini is not as stealth.
The reason for loop to loop in my book is for an easy switch of different things when offshore. quick change. I build mine for abrasions and thats it.
heres a 200lb on one of my reels
Yes I only ask as my application is a bit different then most. I will be running 300lb jerry hollow and thinking of just running a 25ft 650lb wind on to 30ft of 480cable then a doublestrand of #19.....I know crazy but it seems would be the best option for fighting 14ft plus sharks. A wind on makes things easy for me but I am thinking maybe I should just splice mono to the hollowcore...but can I splice 650 or even 500 to the 300lb hollowcore?
Scout I do believe in the connections on hollowcore and seen enough evidence to know they are the best way to connect over a knot, but just curious in this one aspect how much weaker a say 50-60turn bimini is opposed to making a hollowcore wind on loop.
Stellarol I dont think you can splice in 600lb mono into 300lb braid - BUT - you can make a spliced loop at the end of the braid and then make a wind on loop with larger braid or dacron for the heavy mono and connect them loop to loop. Loop to loop and spliced connections are the only connections that I know of that are truly 100% line strength - even the bimini isnt as strong as the other two connections. I also think the leader system you are talking about is going to be a big downfall to any success - its just too much but that is only my opinion. I wish you the best in your quest and hope to hear that with a solid hookset and the proper use of monster drag that the beast on the hook never even gets past the halfway mark on your reel!
Yes I only ask as my application is a bit different then most. I will be running 300lb jerry hollow and thinking of just running a 25ft 650lb wind on to 30ft of 480cable then a doublestrand of #19.....I know crazy but it seems would be the best option for fighting 14ft plus sharks. A wind on makes things easy for me but I am thinking maybe I should just splice mono to the hollowcore...but can I splice 650 or even 500 to the 300lb hollowcore?
Scout I do believe in the connections on hollowcore and seen enough evidence to know they are the best way to connect over a knot, but just curious in this one aspect how much weaker a say 50-60turn bimini is opposed to making a hollowcore wind on loop.
Damn it Man!!! 
thats one mean set up. May i ask why such a heavy windon? You rubbing on a bridge piling or something?
600 will not fit in 300 hollow. You would have to use a piece of 500lb hollow core to splice your 300lb hollow to your 600 lb.
i.e 300lb hollow main line to 12 foot of 500lb hollow to 600lb mono. 
the 12 foot piece of 500lb hollow will act as a sleeve splice.
Thats a lot of work your going to be a mad mother when you get cut off anyway 
Yes I figured it wouldnt fit thats why I am going to just use a wind on leader for the loop to loop. I found 650lb wind ons already made with the loop so I just have to loop my 300lb hollowcore. So Scout, a hollowcore loop is going to be stronger than say a bimini loop on the hollowcore?
CJ yes 650 seems necessary to me as my major spots are pretty debris ridden with shells etc so I want to be prepared, even if over prepared. And to avoid having to get extra 500lb hollow I think just using a loop to loop is my best bet in this application. This rig will not be used everyday for normal sharking, just specific baits at specific times where I am pretty confident I wont find a boat etc.
10-4!
Yes I figured it wouldnt fit thats why I am going to just use a wind on leader for the loop to loop. I found 650lb wind ons already made with the loop so I just have to loop my 300lb hollowcore. So Scout, a hollowcore loop is going to be stronger than say a bimini loop on the hollowcore?
CJ yes 650 seems necessary to me as my major spots are pretty debris ridden with shells etc so I want to be prepared, even if over prepared. And to avoid having to get extra 500lb hollow I think just using a loop to loop is my best bet in this application. This rig will not be used everyday for normal sharking, just specific baits at specific times where I am pretty confident I wont find a boat etc.
If your a genius and have steady hands you can do a bimini twist and insert it through the hollowcore making one hell of a knot
Just an average fisherman.
What was weird that I saw not long ago while reading a knot strength test was that when u use the bimini 20-30 turns was stronger than over 30 don't know if its always like this but in over 10 seperate tests using the modified bristol knot the bimini that had more twists was getting weaker with more turns
Stellerol that is one heavy duty setup!!!!!!!!!! Hope u get the chance at a monster with that and land him.. It was good to meet you at the party by the way. Let me know if you guys wet a line after the party and how it went!!!!! 
What was weird that I saw not long ago while reading a knot strength test was that when u use the bimini 20-30 turns was stronger than over 30 don't know if its always like this but in over 10 seperate tests using the modified bristol knot the bimini that had more twists was getting weaker with more turns
Oh yea thats a whole nother issue 
you can find a ton of test on which is best... 20-50 turns
IMO it depends on what line you use. Just like mono the heavier lb test the lest turns/wraps it takes to make certain knots cinch.
