For those of you who are interested ... "T" was mastered using T-Racks 2 "S" was mastered using Waves 3.5 under Sonar 2 "U" was mastered from Reason using a 'fake' 4-band compressor (ie, built from Reason devices) Interestingly, everyone ranked them in that order - TRacks was best and Reason was worst. Thanks to all who replied :) G.