I have a dual point setup in my 261. I mainly did it because I can go a lot longer between adjustments- since on set only sparks when it opens, and one when it closes, the contacts run a lot cooler and don't pit out as fast. The dwell angle is a lot more stable. Plus if one point set burns you can just yank it out and run on the other one.

Paint & Body Shop moderator
A lone amateur built the Ark. A large group of professionals built the Titanic.