Guys I'm new here and don't really understand what all the fuss is about.
I have used a lot of different primers and all have worked rather well for me. To be honest I could give a hoot what anybody else decides to use.
I don't recommend any products be it guns or paint. All I do is state what I choose to use . Would I tell anyone here to use Kirker epoxy or Mar-hyde poly primer or Zero Rust Nope not me. But I do use all three and also use HOK and Auto Air . I also use some PPG products and many more. I use almost every brand of filler there is too . SPI must be good a lot of guys here seem to like it. Good for them what works for you go with it.
I'm not involved in this fight going on but I will choose my own products to use. I could care less if no one here uses Kirker or SPI. Neither one puts any money in this old boys wallet. I will post here from time to time and take advice and give a little. But I'm not getting involved in any schoolyard spats.
I'm too old and too tired for that kind of stuff.