I talkin with both Ken Ruth and S.R. Grimes about converting my Contarex 21m Biogon to a Leica M-mount and a 250/4 pre-set Sonnar to EOS mount. Any one had any work done by these shops? DAG was in consideration for the Biogon conversion but just can not take any new projects now. Cheers and jeers about them welcome as well as other suggestions.