Always worth trying different fin combos if you can. Deviant is very fun.
Heard a lot of love / hate stuff with H3s so demo them if you can.
Yep as a quad set they seem OK (but still not as good as the R2s) but as a thruster set they are fast but not as drivey as I'd hoped. Ambivalence is the feeling I have. I prefer G-AMs for a thruster set. I like their drive and release characteristics better. Fins are so subjective though so best to demo before buying if you can.