[slimthelineman]

In my experience using the same kv motor on low and high voltages has negligable gains in anything but speed. To fully embrace it you must go down in kv and up in voltage at the same time. This is the only way I've found it to be worthwhile to use higer voltages. Not to beat a dead horse but the 4.5 ballistic is 5000kv and a amp hog I might add. The 6.5 ballistic is 3400kv and much better on three cells and makes the same rpm and power on the track but runs 30-40 degrees cooler iirc. That's the easiest comparison for now but my rc8 runs about the same temp margin cooler on 6s 1400kv vs. 4s 2050kv. Plus the 3&6s packs are smaller in capacity and weigh the same or less than a 2&4s pack of higher capacity. Hope this helps. Might be able to produce some data this weekend but we will see what I can come up with, I have a plan and a few rigs to try stuff with so maybe I can offer more than just my experiance.