Dave,

I am Team JR sponsored in the US and that has allowed me to use many of the top JR servos int he past 20 years, as well as some of the "sport" varieties in my sport planes. For 2M pattern planes, my preferred setup is:

Ail - 9411sa
Ele- 8417sa (self conversion of 8417 to nylon gears w/ 8231 or 8411sa gear set)
Rud - 8411sa
Thr - 3421sa

Jon L gave you a ton of great general advice for pattern servos. Definitely go digital, nylon gear, and 5cell Nixx or regulate a 7.4 lipo to 6.3 - 6.5 volts - the added voltage is free power and speed. And I would also agree that very often when the servos don't match the TX, the servos are JR - that says a lot for JR servos.

To get the most resolution out of your servos, full surface deflection should equate to 35+ degrees of servo rotation (about 120%+ for ATV/endpoints for JR radios) in each direction, and don't use any more surface deflection than you need. Assuming you have the linkages setup in that manner, there will be much less load on the servo and any servo will perform better.

Very recently JR has introduced the 821 w/ the 7202 TX. The 821 is 1.5 oz and on 6v is rated at 86 oz/in and 0.15 sec - darn impressive specs for a servo with a MAP of $30 USD. It is a cored motor, but I've not noticed any lack of performance attributable to cored motors in any of the cored JR digitals I've run (the best spec'd servos are coreless tho). I think you would be quite happy with the performance of 821s all around, with an 8411sa on the rudder (~180 oz/in and 0.15 sec at 6volts).

Regards,

Dave Lockhart
Team JR