I know that CVA has a slightly different 209 conversion nipple design. Is it considered better than the Magspark? My Magspark arrived today, but if the CVA is much better, then I'll get one.

I had read of problems with one big batch of Magsparks a few years ago due to a machining error, but I read that they were recalled after a few failures were reported and the design was strengthened for all new production.