if you ever run a stage 3 meth kit that taps into the flue interctor power line to run DC off the fuel injector DC, then you will want fic because it comes with a harness adapter that will allow you to tap into without needing to tap into the stocke cu harness
I only use ID injectors.
ID , fiveo motorsports and DW all use ev14 injector and then rework them; With ID,they also give you all the info your tuner needs, dead times at all fuel pressures and all voltages.
Having said that 750 cc are small injectors and you wouldn't notice much if any difference between them as far as tuning goes, just a little longer to dial in.
Over 1000 cc totally different story.