I have read Mike Krause's name mentioned before; always favorable comments. The cost of cleaning your Luger (which I'm pretty sure is all he did) seemed to me excessive; any Luger I get in gets cleaned regardless. But after reading what G.T., ithacaartist, and others here charge/pay for Luger service, I may have to re-think my pricing...
John S's comments on Mauser bump omission/Swiss 'upgrades', and the sideplate hump (I like the Swiss ones) makes me also re-think my valuation of the 1970's Mauser Lugers, especially the 30 cal models...