Old Brown Shoe is a great Beatles track & Harrison tune, often underrated imo. But I don't agree BOJ&Y & Shoe "sound just like" the Let It Be tracks. But again Let It Be-( the album ) needs a couple more good tunes, especially a good Lennon tune. The only problems I have with I Me Mine, is that it was only a minute & a half long before Spector fixed it with an edit, & mainly the Spector strings make it, & Long Winding Road, both sound like they come from some other unrelated project. Likewise for Spectors version of Across The Universe. In a way Spector or ( someone ) had to do something, with the weaker unfinished tracks, that didn't seem complete without a little extra something. But maybe they could've just done a Billy Preston organ or Harrison guitar instead of all that orchestral glop. But yeah I agree with you, using Ballad of J&Y & Brown Shoe instead of 2 orchestral tracks, more or less fixes & preserves the live in studio concept.