Interesting results with magnetic buffer

https://preview.redd.it/tqmffy5sdv5g1.jpg?width=1214&format=pjpg&auto=webp&s=6583f63a640eee6a367fd793bd182ce0dad832c2

https://preview.redd.it/zpbjok2xdv5g1.jpg?width=1226&format=pjpg&auto=webp&s=21ac614ed22761857eeffb2972260eb4e3b1d1cb

I am always trying to reduce the reciprocating mass. This is the lowest amount of reciprocating mass I have done so far while also keeping the full auto cyclic rate down to around 600 RPM. I'm very impressed that I am getting 608RPM with this 3.9oz buffer while the the same exact configuration with a heavier H2 buffer (4.5oz) is getting 807RPM. I've always said that I am a proponent for 'live' mass and I think this is a good example of that.