It's going to be interesting for sure
From what I've read, the blades create lift at lower angles of attack (even at 0°), which means less drag placed on the power system for a given amount of lift, which would require less current, so longer flight (it seems anyway). I may have to adjust my above-mid-stick pitch curve to coincide with blades that have 2x (or whatever) lift. Who knows, maybe a combo of both (lower RPM & increased lift) is possible ?
I have to be careful though, as head speed slows so does the tail rotor, and if I slow it too much, then add blades with extra lift (extra torque) the tail may not be able to keep up since it will be spinning slower. I'll have to put my largest tail blades on if I go down that path ... or get larger ones.