Originally Posted by big ted

I'd argue the only real 'updates' to ESCs in the last 3 years have been in the way one programs it (WiFi programmers & cellphones/tablets vs. plug-in programmers). While these make programming more convenient, they're certainly not necessary performance advantages. Further, since in stock classes we're not allowed to use many of the advanced programming features anyway, they're of even less benefit.

Plenty of fast guys using models released 4-5 years ago, even at the top level.