Icarus + safe fall was always my go-to for tower stomping. Fast ascension and decent. However, I find I quite enjoy the mobility of Skirmisher jets + catlike + safe fall + adrenaline pump. Catlike, on top of allowing you to crouch walk faster and also evade detection, gives you a pretty big jump height increase, making it faster to gain altitude and climb things. Safe fall obviously allows you to not waste your fuel slowing your descent from things and also allows you to silently drop right behind enemies from high above. Adrenaline pump is really just there to go maximum mobility. If it's worth doing, it's worth overdoing. Next I hope to get the Aerial combatant implant and combine it with Flight Suit, and I'm not sure if I should go with Safe Fall again or Assimilate because it does also regenerate ability energy on headshot kills.