I have small wrists (6.5") and when I use straps with tang buckles, I usually end up using one of teh last to holes in the strap. This places the bucklejust of center on the radial side of the wrist, but still on the underside.
I just bought an Axel Jost DF1 double butterfly deployant for a watch, and I notice that when I use the last hole, the folded butterfly lies along the bottom and side of the wrist. This adds a lot of bulk and thickness to the underside of the strap, and seems less elegant.
Should I just forget about deployants?