Originally Posted by Spyro37
Have you tried both sizes?
Do you use the 3200mAh
I do have the Gens Ace 3200 & 3300-mAh 3S.
I'm using 12x10 my buddy is using 12x7. I bought the 12x8 and used in a different plane and snapped it on a tip-landing in 20mph on a crosswind landing. I have no doubt it will be good. I'm using 3300 and 3200. I have eflite, zippy & turnigy. The packs you have should be just fine. Gens ace are excellent packs.