the IIC uses a "spec" handout motor for one of its classes, for a extra 20 dollar entry fee you get a 80 dollar motor seems like a good deal to me.

and yea there is NO reason why a spec motor and esc won't work at a large event. give all the manufactors a chance to bid on being the supplier with a cap on how much the system can cost, and if that extra money is going to keep you from racing, then maybe you shouldn't be spending the rent money anyway.

remember, there used to be a time when you couldn't run your own motor in the stock classes.