Still don't understand how you smoked it.... I really am interested in a wiring diagram xD you mount it directly to CF with no stand-offs? I've seen and made all kinds of mistakes when plugging itt up and never seen a genuine 2.1.5 smoke because of that xD.
Put some ads in, not the annoying ones may provide 5% or the cost, but it would be a little xD. As for interest, there would be some, but the real target would not be forums, it would be face book groups.
Depends how you fly it, if you were to hold the throttle full for a few seconds you could burn them up as they would be doing more than designed, 4S vs 3S is a few volts, and kv means RPMs per volt.
They look fine, you also get an extra in case.
Frame would be harder to loose hahaha, looks fragile though. CF would be ideal, also DIY is always an option too, at least parts don't come from China hahaha.
Everyone needs a 250 xD
Here is a 770mm 6H build I was working on late last night (this picture was from 1:00am, and this one from around 4:00am)
And this is my 370mm aluminium build, I plan on getting bigger motors and making it at least a 500mm.
But I still have an empty hole that only a...