How about a Cox .049 C/L engine?

I havent had any first-hand experiances with the VMAX 46, but there were a couple of guys at a field I fly at that had them, from what I understand they are good engines too... One was on a fairly heavy Hobbico Superstar trainer and it flew very nice. They are cheap for a Ball Bearing 46, richmondrc.com lists them for $67.95, that about $10 less then a TT Pro46.