I am biased Bud cos I don't like IWB - but I find it hard to imagine a comfortable set-up when you have the cylinder bulge! My K&D rig for SP-101 - have posted pics before - is a hi-ride belt slide and holds gun right tight in to me - just as well IMO as any IWB could and the ''concealability quotient'' is probably only marginally less effective.

That said - I am sure K-Man could give his opinion, as to possibility of making something to suit.