I found the same thing about smooth prime. The first time I used it, I had to remove mountains. Then I started thinning it. It doesn't cover as well thinned, but it does a much better job of filling pin holes and does leave as many mountains to sand off. I then used a grey filler primer and still had to get rid of some pin holes with spot putty.
I sanded the mountains off with 100 grit, then went to 220. My final sand on the grey primer was 400 grit. The paint says that it prefers that you don't sand to more than 230 grit. Well too bad for my paint. One thing I really like about using the smooth prime and then the grey primer, is, that you know when to stop sanding the grey primer. See white and stop. N64KR Daniel R. Heath - Columbia, SC da...@kr-builder.org See you in Mt. Vernon - 2004 - KR Gathering See our KR at http://KR-Builder.org - Click on the pic See our EAA Chapter 242 at http://EAA242.org -------Original Message-------