well, my LHS got me an airtronics 94162 servo. why? i dont know. it was going to be a JR 590Z, but the airtronics was more readily (sp?) available. it weighs double a standard high torque servo at a touch over 2 oz, but this thing is a monster. its not lightening fast, but worlds faster than my old hobbico (dont give me that look, i didnt put it in there lol it had it when i got the truck!) and its got enough torque (154oz/in) to make me not want to run into it in a dark ally. and it was under 70 bucks. holds trim just fine, and really throws the car around the track with authority. im happy