This may seem stupid to some but I have been filling and block sanding my car for weeks trying to get it straight and smooth. I'm using the short strand fibre from Everfill I think it's called (I'm a scatterbrain lately) and I've started to Glaze over with Everglaze metal glaze.

It seems that as I sand it down I sand off all the Glaze with just maybe one or two small spots left over, am I sanding too much or do I need to even use it if the panel is straight with no ridges?? It seems like I'm wasting time and effort skimming it all if it's not necessary, I'm cutting the high ridges with 80 grit and then finishing it with about 120, could I just finish the filler with 120 and then prime with my high fill primer???

Thanks,
Sean