BPA sounds good to me.
I too have looked at the SPA but wasn't interested for a couple of reasons. First, couldn't find anyone in the area that was doing anything with SPA and second, I am a fan of the 75-85 vintage pattern planes. I have a NIB Dash 5 and YS 60 FIRE ready to get into the building cue. I am like others on the thread, I just like the old 75-85 pattern planes. Started flying pattern in the late 70's (in central and southern CA.) with a Kaos and a K&B 60. Really liked it. THen I moved up to T2A, Tipo (loved the plane with a OS 61 with an OS 1.08 FSR carb), Phoenix 8 Challenge 4 and a few others. I was never that great but I sure enjoyed the way the planes flew. TO this day I still like to fly "Ppattern" type planes over the 3D type of stuff. The friends of mine that got me into pattern were flying the Dash 5 with the YS 60 and I liked the combo so much that I found the a Dash 5 (NIB) in Denver back in the early 90's. I have the YS 60 (bought from one of the guys that taught me to fly pattern) that has been in the box since 1985. They are still in the box waiting!

I sure wish the SPA would take a look at being more inclusive for the 75-85 vintage stuff. I too would like to compete in the SPA environment just cause it seems to be a little less pressure.
Ed Valls