$30 for -1 swap in the front, that`ll give you more "pep"

If you need more, than do the 520 conversion... if that's still not enough, go with NOS :Sport:
More seriously, I love both bikes you are looking at, so if I were you, I`d go with the smarter choice for the type of riding you do.
If you do track days all the time, I`d take the R1... if you do more street riding with some longer rides in there, I`d go with the FZ1.
I am not sure why everybody is focusing on the "you will never really exploit an R1".... it's most certainly true, but who cares? if only guys who "can really master the R1" would buy it, Yamaha would be out of business in a couple of weeks.
If he likes it and wants the power to be available, let him do what he wants! even if you don`t use it to its full potential, there is still a big difference throughout the whole powerband.
Anyways... Good luck with your choice, and post pics when you get it! :thumbup: