I think you're 100 percent correct on that my friend. I had stuck this on there as, that's all I had. And haven't flown in a while and forgot what was on it. Plus these flitetest props are nasty, loud, inefficient little buggers.
I'm using the FM-01c (if I recall the model number correctly). So with this flat prop, I have the little rpm adjustment maxed out. That's gotta be worth a milliamp or 2.
But hey, as a battery test, I'm abusing it more than I need to and it's still hanging. Now that the plane is groovy, I'll change props and post a pattern video or 2.
To answer your previous question about the size in mah... the cells I use, that I trust to handle the current our planes draw, only come in a 2600 or a 4200. The 4200 cell is physically larger, but only 22g per cell heavier. However, I doubt anyone is clamoring for 4200mah packs. Lol