honestly if too many people are complaining about motor of the week issue at a certain location, the track owner can try to implement the kv and gearing limit on the affected class. Yes it takes some time to do the kv checking before race and checking/marking the pinions before race, but if people are not complaining then no body have to suffer through it. Also if someone cheats given these rules, you can easily spot the speed difference on the track, and the offender will be easily caught. I've seen one race implementing it and speed wise everyone was dead even.