Im not sure if anybody has answered your question or not, miltsparks summer special IWB, had it, traded it, hate myself, and buy the way congrats on joining the plastic club.
Well, I actually joined the plastic club 18 years ago with my first Glock, the G22. Since then I've owned a Glock of some sort...off and on.
As for the Sparks SS? I'm not a huge fan of IWB holsters anyway, especially the ones that have the loops on top of the gun/holster body.