I've never had a chance to compare to an original Decca, but the Speakers Corner reissue sounds very good here. Be sure to do a gut check with your listening priorities, though. The Speakers Corner has the benefits of an excellent contemporary re-mastering, it lacks the tubey pluminess and upper mid peakiness one so often hears with the originals. (Woops, my listening biases are showing :-))
.
.