Ever since I became interested in 3D aerobatics, I set all of my rudder throws to max... I find that the control I use the most when trying to hover is the rudder... I've gotten about 45 seconds out of a hover now... I fly a Sig Somethin' Extra with a Webra .61... I also like big low pitch props... but the only real point to using them is to get more thrust out of a borderline engine. At about 1.4:1 - 1.5:1 power ratio this is unnecessary.