One thing you might consider
IF you go with Kydex, get a holster for a Commander size gun. The really short barrels of the Officers sized guns don't always lend to great IWB carry because there is more weight and bulk above your waistline than there is below it. It helps stabilize it
The reason I say Kydex is that if you use the shorter gun, it won't collapse the muzzle end of the holster like leather might.
One last thought, because that gun is pretty short, it really does carry nicely OWB, with a good high-rise holster and a good belt.
Just some random thoughts from Afro Man