Thank you for the reassuring answers!
I'm flying F3A P-13, using a stnd Hyde-mount.

I was hoping for a bit less Amp-drain given the smoother running CDi-engine. I've got counter-weights on the ailerons, but I'm guessing the speed etc of the servos require a fair share.

Just found the Graupner LiFe 1600mAh RX-battery weighing the same as the 1100 and similar dim's - Now ordered!
http://www.graupner.de/en/products/0...2/product.aspx

I'm setting up my new model, so I'll pop in a 1600-battery there! Same engine, same servos...