The FS100 is now under half the price of an FS700.

I generally film live events and I used to use a wide static B-cam shot while tracking tighter with my A-cam but I hated matching different cameras.

Would any of you FS700 users have taken the two FS100 option?

All depends on what you are shooting and what features are most important. I've managed without the ND filters, and don't (currently need 4K). The slow-mo would be nice to have, but not a deal breaker for me. I'm happy with the FS-100, but that is because it suits my typical projects (corporate shoots, talking heads, chalk-talks, live performances etc.)

I guess the dealbreaker for me is the performance of the LA-EA2 on both cameras