New front Runner
I played with the Renzetti a little and I think it has stepped into the front runner position. I still really like the simplicity of the HMH but for similiar money I can't see why I wouldn't get the rotary feature. I have heard a little criticism of the o-ring feature, but it seems that it is more about the concept than actual performance. Concerns about the o-ring concept was one of the reasons I was looking at the dyna-king, which I also played with the same day. And while it looked and maybe felt a little more solid or substantial it was nowhere as smooth as the Renzetti and had what I would call a "notchy" feel.
Anymore thoughts or experiences appreciated. This will probably be a Christmas present, so I am still trying to make up my mind as to which one to "ask for".