Ah, good to see the new SPI forum is up, and it looks sharp! I've updated the link to it on our Master List of Hotrodding Forums
Also added a link to the "What every new painter must read" thread, in the Phosphoric acid as metal pretreatment
And, updated the vids in the Rust removal with Ospho
BTW, anyone is welcome to start a "Why not to use Ospho" wiki article. There is criticism of Ospho in both articles, but it seems like a designated opposition article might be warranted.