Back before there was the XL or any 8s esc besides Schulze and MGM a guy brought an all aluminum HPI Baja into the lhs. Had a 22 series Neu in it running on 6s through a MMM and he was wondering why he smoked two of them. Both were replaced under warrantee btw. Yeah it's an extreme example of pushing an esc too hard but I still can't believe it even today.
There's really only one simple solution to this problem. Sell a dedicated, unrestricted esc that does not qualify for the warrantee program. Mold the case in a different color, etch the board with something to indicate it as well and let the user push it as hard as they dare. Now you don't have to worry about any hacking of a system to unrestrict the esc through Castle Link (you know there's those that would try just to get their esc repaired for free) and a bright red case lets everyone know what the esc is on the used market. The cost of changing the case color and etching the board should be pretty low and offset by the cost savings of less warrantee claims from misuse so the selling price should be about the same. The biggest cost to do this is likely the webpage for these unrestricted esc's and editing the firmware updates to accomodate being unrestricted. Obviously these would be low volume so probably only sold through Castle but it would keep everyone happy.
My opinion I think this is the way to go. The average user isn't going to try for 100+mph and will never see any fail safe kick in. The few that mess around trying to get there will hit the fail safe and start researching why or call Castle. It wouldn't hurt if there was some sort of indication by LED or in the logs that the fail safe was hit. When they hear about the fail safe most will probably be happy they didn't hurt anything. Those that are serious about going faster will then have to decide if they want to buy an unrestricted esc that they're responsible for not blowing up. If they are they'll go to Castle's website and find the page with the unrestricted MMX and XLX. Maybe do some sort of trade in program for those that don't want to be bothered selling their restricted esc to appease the ones that are complaining now and make it easier for those in the future.
Last edited by Overdriven; 04-23-2016 at 12:19 PM.