RE: 20 min. hover
I flew one of my relatively low hour Lama V3s last night with a 3S 1300 MAh battery in it. It flew pretty well and had insane (really insane) power. The only thing I noticed is a greater tendency to yo-yo, but that was probably my dumb thumbs. I could also get some super high speed straight line flight, although with stock shafts it did like to wad up during hard cornering (duh this isn't a CP bird). After 3 or 4 5 minute flights it went into a hard left spin although I set her down with no damage (the battery stuck out past the landing skids!). I didn't check it out but I imagine that a motor or 4 in 1 burned out. No worries, that's why I have a spare parts bird!