The last one was equipped with these. They worked perfectly. I am normally quite touchy about Hitec servos and theri centerings, but either these were ok, or I couldn't tell. Oh, and it was our demo model that was powered by a super sport, so I am pretty sure I would have known if they were not up to the job!
http://alshobbies.com/shop/search.php?Desc=5245
Regards Al