Yes and no. I took the P series armorer's class back about 2008. It was kind of interesting, but I don't think I learned much I didn't already know. Except for me and a guy from MFL, everyone was a LEO of one flavor or another - National Park Service, local cops, etc. Some of the other students didn't seem to like having a non-LEO in their group.
The final exam was fun - written and practical. We all had to completely disassemble our P220s and dump all the parts into a big tub. The instructor added a few extra parts and then we had to fish out enough parts to build a gun. I aced both and was the first one finished by a significant margin. It was a fun way to kill a couple of days.