Tom,
Sort of like the short sides on a 12” 45? Those are a different thing I know but every one I have (about 8) is worth the bother.
I have very few replacement records at all and none with an expanded number of discs. I do however have several newer issue, 33 rpm sets with 3 or 4 relatively short sides and they all sound great. I believe it helps. Most times I don’t mind the extra trouble (except for maybe on Neil Young’s recent Colorado - which is new but as you describe and is annoying - exception that proves the rule …)
opposite is too much ( > 25 minutes ) crammed on a side often doesn’t sound good on my rig. Case in point: in a box of piano sonatas nos. 1-4: < 20 min per side sound good. 5th: +30 min crammed on one side sounds flat, thin, crummy. Good test because every other aspect is apparently the same. But I suspect this is a well known thing to you and the cognoscenti here.