RE: Been Practicing...
No, the heads are a little different. If you look closely, you will notice that the paddle push rods on the rc-expert head are plastic.
I'm sure it is far superior to stock, however...
Just be advised, if you get the helidirect head that it is not a true 'drop in' fit. It takes a lot of adjusting/fiddling to get it set up right. I am still working on mine...