Received my new and improved mount from Spartan Mounts as once again ever though Not their issue technically, they eagerly wanted a solution. I gave him some measurements and received my replacement. Although the mounting holes were slightly wider it was necessary as there was no choice due to having only 2 small openings (now further apart). Although close to the old plug used I managed to make it secure and it works perfectly with the Hogue style base-pads and the Kimber Micro 9 Magazines. I think they should either default send these from now on or have a drop-down option on the site added in. Hope this helps some of you. In the interim until we know it is best to inform them on the current magazines and base-pads you use with your Kimber. Either way because of aftermarket parts it must be extremely difficult to keep up with the ever evolving array of choices and tweaks they must make to keep up. They seem to be adding products, and I seem to keep buying them...(as I build my collection).