We use the B2 cable on all of our blasters. I have bent and seen many stock cables bend on limited 701s and if you stick with the stock cable and go 1100/1200, it isn't going to last for $hit. The only thing about the b2 cable is, you have to get an under hood adapter made by NYNJA or Tobek.
It is a mod well worth the money to keep the ski on the water as opposed to working on it.
As for the throttle cable, not sure on the yamaha triple, but on the kawi, you can use it, but you have to make a cable holder for stock carbs. If you have aftermarket 44s/46s, etc, you can just buy a throttle wheel and carb adapter. IMO, better to use the kawi throttle cable as it is a much beefier cable than the stock yamaha b1 cable.
SM