RE: VAC BAGGING LEADING EDGES ??
Not sure if you are wanting a glossy surface or not. I can tell you what I have done for a surface intended to be primed and painted.
Put your cloth down on the surface and wet out with resin, add a layer of peel ply and breather cloth. Flip and do the same on the other side. Bag the part, I have been wrapping parts with an electric blanket to speed cure to 12 hrs.
After pulling out of the bag and peeling off the peel ply you will be able to sand off the flash with 220 and then smooth out the surface with 220 and it is prime ready. The glass will wrap around the edges nicely. If you want a glossy surface and plan to use mylar as a surface form, you will need to work the leading edge and tip.