It will depend on when the bf was built. I have one of the original fuses and it was a huge pain to work with. I also have a more fuse and it has lots of room. I doubt SSUSA will not know before they receive them what its like, and without seeing them side by side it is very difficult to tell.
The original one was tail heavy, so you had to add TONS of weight to the nose. The new fuse has an elongated nose, but I'm still building it, so I am not sure how much weight it will need. Mine is 8s ice 100 and I added some caps.
Keep it light if you can, I am using 1415 motor, and recommend 14XX series if you can find them.
Any more questions, please post in this thread