I have a bobtail commander, arched MSH full sized, and flat MSH with magwell on full sized. They all feel great. I carry the CBOB concealed. The bob eliminates the corner printing so badly under my shirt, and it's comfortable in my hand while shooting--sort of revolver-ish. The others are fine, too.
Another (non-reversible) option is to radius the MSH/frame corner as much as possible without going full bobtail (MSH pin stays where it is). That leaves more straight surface for your hand, if you like that, while helping in concealment mode. Sorry I don't have any links to show what I mean, but you should be able to visualize it.
Randall
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