For Classic Hits, I think the “4-voice” style actually sounds fuller, oddly enough. Doesn’t sound like each syllable is pieced together, either. But you’d think they’d offer a “classic” Dallas vocal sound (I suppose you could still ask for it).
Incidentally, are any stations actually using EVO Classic Hits? I know none of the demo stations were, last I checked – WLS-FM and KLUV still have JAM, WHTT has TM’s “Milwaukee’s Oldies” packages, and KOOL-FM isn’t using any jingles. Meanwhile, all the other EVO formats do have clients. I personally like the AC and Country (both regular and “Hot”) packages the best.