What seemed to have worked was (i think) more due to the reason that i now usually make a short brake after 5 minutes into the run (which helps the ESC to cool down inbetween).
I you take a look at the
following video (FG onroader with XL2 ESC) ... you will notice heavy cogging right at the end of the run when i tried to bring the car in. The esc had logged around 100°C at that point. At the beginning of the run there is absolutely no cogging. And i think i used the settings i have posted above. It really depends on different factors how bad it might cog. Can't remember i have seen the Losi 5T cog so bad after a longer run.
Yes: additional cap pack, external bec and dual 5.5mm plugs. I'm also using a 10ohm resistor when plugging the batteries to the esc (ESC is set to 8s ... not auto lipo). I think those "goodies" help the ESC to survive and work reliable. I also have installed a plug to disconnect the UBEC from the ESC when i'm retrieving data via castlelink (as it would be otherwise powered as soon as you connect castlelink to your laptop/PC).
With all this small goodies i'm now runing two XL2 esc without issues.
Would be interesting to know when the "xle50" castle car esc (12s?) will hit the shelves.