I know some people here will disagree, but I like the self regulating system. It is seen on the pictures on photo archives.

This way, you can use any bullet weight you prefer, and if you change your mind latter, you can ajust it all over again. The fact that the barrels are separated is just a cosmetic feature, and I think that you would forget about it soon. I would, at least. Besides, it probably helps in cooling the barrels off after firing.

Fred