polyester primers

[krovel]

Was wanting polyester primer.  Rust defender by clausen to be exact. It is supposed to be all in one, primer, guide coat, and filler to get panels as smooth as possible.
I am very new to body work and thought it would be more forgiving than just a high build primer. When I apply paint to my last couple of projects the panels Are still a little wavy. I am not sanding them properly. I guess I get into to much of a rush
I know its not a show car but thought since it's not a lot more expensive maybe it would be worth a try.