This idea is a no-go right now. I'm having a hard time getting everything centered properly. It's difficult to cut thicker aluminum like that without the right tools. Ah, the things I could do if I had access to CNC and milling equipment!
Back to the stock head for now. Clipping the blades seems to have helped alot with the headspeed. It's flying fairly nicely right now. I was going to go out and take it for a spin today, but I got called into work early, so it looks like that's post poned for now!