Whats it going to take

[zeropointbug]

I think the old(er) school esc's such as MM and Quarks had lower failure rates than these new units (RX8, MMM).

I agree totally that the build quality on them is quite bad, as far as physical abuse, vibration resistant. Also the brains boards of an esc should be replaced with a small IC (integrated circuit) that would take the place of the relatively large controlling board, that would make room for more FET's, which would equate to lower temps, or maybe more power capacitors.

I have had a Quark 125 for 2.5 years now running 7s A123 and 6s lipo, still works like a charm.