CAn i offer my advice, as a gun advocate?..
Thanks. LoL

I'd go for a mix of the Military holster you have, and the F.B.I.'s Quick Draw idea.

Rotate that holster design you have by about 45 degrees, in the counter clockwise so that the Top of the gun is pointed down.. and the grip points upwards slightly...

Its a cross draw setup, I.E. you place the holster on your right hip if you draw with your left hand, and vice versa.. But, its VERY practical... reduces draw and aim time by about 20% on most people.. due to the motions your arm goes through with this setup...

And it looks cool as hell too... kind of a Wild Bill feel to it..

To do that, You woudlnt be able ot have the big loop comming off the top of the holster to the belt.. You'd have it set up so the belt passes throgu the holsetr at the correct angle, just behind the gun its self.

G