just bought a u-can-do 3d 61.I am putting a 91fs surpass 2 in it and am curious as how well the engine runs inverted and starts.Any feedback would be appreciated.Its not the pumped version and is the covering on it monocote.I've read posts as to the right thrust and main gear problems and plan on glassing or using triangular stock to strenghen the area.anything else i should know?

thanks .ken