I use:
JR DS8711 (highest torque)
or
JR Z9000T (smoothest-IMO)
or
HiTec 5995TG (happy medium and probably best for Losi 8ight-IMO) Also Tower Hobbies now has a copycat version of this servo that looks promising. Normally I won't even consider their products, but this one doesn't look bad:
http://www3.towerhobbies.com/cgi-bin...7&I=L37024&P=K
All are overkill for torque.