Hi...
O-360 v IO-360 - Engine will hesitate/stop @~0.2g. Not the end of the world, but your/pax reaction may make aileron rolls/stall turns (Hammerheads) less desirable/need adapting.
FP Prop - no real issue but some work on throttle to do at higher speeds to avoid overspeeding engine. Do a couple of dives to establish what IAS Full Throttle = 2700RPM - then whenever you see that IAS approaching, throttle back.
Other than that, the normal basics of Loops, Barrel Roll are all fine. Slow Rolls not.
Flop Tube pretty much a waste of time in an IO-360 without full inverted oil - definitely would be a waste of time with a Carb O-360!
Andy
RV-8 G-HILZ
RV8tors