CDF note 3023 "CMU Reconstruction Efficiency in Run 1A" can be found in c$pub. We have used the J/psi dimuon events which pass the single muon trigger to measure the efficiency of muon recostruction in the CMU. jdl@fnald, dejan@fnald Posted to CDF$PUB:CDF3023_CMU_EFF_1A.PS Posted by FNALE::DEJAN