Did you 'notice' that the 1100 and 600 batteries push the AC1215/16 a little better than the 720s you have been flying
LOL . I hope you were not disappointed
. You don't sound very 'excited'
. Just kidding here
but wondering what your 'impression' was, as I have been flying this combo for some time and am really enjoying it. Oh, I'm using the APC 10x7SF at over 5000 feet. You're probably at a lower elevation which will push the motor harder than I am..... Just a heads up