I've gone with motocross tip which has a really neat spine at the back. The front armour, elbow and forearm armour I removed leaving some top shoulder armour.
Heat retention is no issue as the material is breathable. I have lots of additional armour which may push my core temp up though lol.
None of which compare to my 100% coverage in may mandalorian costume where both the weight of my armour and the coverage requires internal cooling fans.