Hi all, I've posted this in here as I'm still fairly new to this hobby but also it seems to be the subject that gets the most viewing.

If anybody has the Multiplex Acromaster has anybody had any problems with Servo's on the Ailerons ? The LHS didn't have any Multiplex Nano's in stock so sent me E-Flight S75's which lasted one and a half batteries. I then tried a pair of cheapish ones I had myself that lasted 1 battery, the LHS sold me some more Blue Birds BMS 373BB which again lasted one and a half batteries.
I went to another Hobby store to make sure I'd set it up right and they said it was fine (got a second opnion whilst in there) but the Servo's probably weren't man enough for the job as it was a large control surface to move and sold me Hitec S65's which I've now had about 12 / 15 flights with no problems. The original store I bought them from are saying that I obviously did something wrong and won't refund me, I think they sold me something not fit for the purpose for which they were sold and in which case should be an immediate refund, anybody else had similar problems at all - any feedback would be appreciated.
The whole time the Mutiplex ones they sent me for the Elevator and Rudder have been absolutley fine.
Cheers.