the main goal is just to fly fast and look good while doing so... the Revolver looks good... I have seen it do 159 with an electric and 129 with a 55AX by just running at high RPMS... which is why I don't care about power loss or anything... just want to get into those revs... I have posted in the speed prop area... but you guys reply sooner... and I get most my info from here...