Fleetwoods - Mr. Blue

I have the same question, Richie. However, given that no one has reported finding the correct 45 mix of "Mr. Blue" anywhere on CD in the nearly 17 years since this message board thread first began, it certainly looks like the only way to obtain the 45 mix is via a vinyl dub. I think Brian is probably correct that the reverb was added "live" as the 45 was being cut and, therefore, doesn't exist on a master tape. Unfortunately, it's extremely difficult to manually replicate reverb exactly, as anyone who has ever attempted to do so can attest, unless you happen to be using the same sound processing equipment with the same settings as what was used on the original recording.