I am almost done with my rage gold that I bought a year ago, I bought dad the new rage extreme but one of my buddies said he doesn't like the way it sands, the extreme clogs the paper too much he said.

what do you guys think?

My supplier doesn't carry anything but extreem now I think

I have used all three of the Rage fillers. If you are good at spreding filler the nice thing about Extreme is that can use it as your skim coat product instead of buying another product like metal glaze.
To me extreme is like Gold but with some metal glaze added to help it spread easier, which you can do.

Much how do you have to fill? In order to make those products spread and sand easier they basically grind the talc finer. the finer the talc the better sanding and spreading but it fills less then a product with a coarser talc.

If you are doing close to 1/4" then I would go with Gold.

Thanks Eric, I like to think I am getting good at mixing and spreading however I still get pin holes in the "pin hole free" extreem once in a while. I hope my metal bumping has progressed enough that I will not be filling more than a 1/8 th in. I haven't had too much trouble sanding dad's extreem with it clogging just wanted to see what you guys thought.

The extreme doesn't clog the paper IMO, unless you rush the sanding /try to do it while it's still to wet. Pinholes can be problems with all fillers and it usually is related to how the product is mixed and applied. Try not to fold any air into the filler when mixing.
An old timer showed me this years ago- when filler is just spread on the panel it basically rolls off the spreader and sometimes traps air between itself and the metal which later can rise to the surface and become a bubble or worse yet stay locked between the filler and steel later starting the corrosion process (unless the steel is coated with epoxy). To avoid this problem simply apply a layer of filler and with the next motion scrape it back off, this will make sure any voids and crevices are filled and guarantee a good consistant base film. Then with the next motion reapply the filler. Try to keep your strokes moving in the same direction and use some pressure to work the air out. Bob