So the trainer is assembled and I took it outside to fire up the engine and break it in. This went well, it started quickly and I followed the manufacturer's break-in procedure. So now I THINK it's running quite well but my question is how low should it be able to idle without stalling? Should it be so low that the model doesn't roll at idle? Because right now I have to hold it firmly even at the lowest that I can get it to reliably idle. I do intend to have an instructor check it out prior to flying.

BTW-it's a .40 sized trainer w/ a Magnum XLS .46 engine

Thanks!