Hello.I followed the manual to the letter and adjusted screws as recommended but did not detect any difference in climb rate or attitude. I tried a smaller lighter battery from one of my other planes (only 600MaH) and there was a definite earlier lifting of swift - but flight time only 4 minutes! Have tried different props but stock is best - especially if you break them as often as I do. Tried other props off zagi and ME262 but they won't even move swift along floor! Good flights!