A friend just emailed me this picture and it appears the TM G17 is even wider than the KSC version, so it's definitely going to be a tight fit in holsters designed for the real G17.
I've always used holsters designed for the larger G21, for my KSC G17 and they fit fine.
Not too keen on the seam line on the front of the TM version.
When I get a chance to pick one up, I'll have to use my calipers to measure slide widths on the KSC, TM and real G17.
Graham