I brought my copy of Groovin' to Jim's house (Tomic) yesterday. It sounded much better yesterday than it did on my rig last week. I will clean it again in my Degritter tomorrow, this time on the full "Heavy" clean cycle and listen to it again. I think maybe a more moderate volume level may be a better way to listen to it. I don't believe it ever was a reference recording quality, so the remaster/reissue can only make the best of what the original tape has to offer. The music is fabulous and brings back a lot of good memories. I would prefer to keep it.
I'll check out the YouTube review, as suggested.