In the F.W.I.W. category, and in deference to the original question, here goes: In listening to the three copies I currently have on hand I found a significant dimunition in the audibility of tape hiss in going from the least to the most expensive LP (no surprise there). 1) Parlophone PCS 7088 - slightly audible but doesn't detract from musical enjoyment. 2) MFSL 1-023 - had to crank up the volume to get the same level of hiss, a more musical and detailed transcription (albeit 'punched up' IMHO). Japanese 'Pro Use' EALF-97001 - incremental decrease in hiss (nearly inaudible), much more neutral presentation. The Pro Use is undoubtedly the best LP of Abbey Road going (also IMHO), but rare as hen's teeth. Hope this helps. -John