Are you actually talking about the 2023 zeb? not seen anyone else say with your opinion ". It's either harsh or doesn't stand up to its travel, small bump compliance is medicore at best." but everybody says exacly that about the -2022 zeb. 2022 zeb with the debonair+ air shaft may be a different story.
2023 Zeb Ultimate 29 @ 170
I'm not saying it's abysmally awful, that designation goes to certain others I've had over the years, but it isn't great either and it's certainly not the best out there. It's mediocre, there is worse but there is also a lot better. I also read plenty of reviews on the 2023 RS products that mentioned small bump compliance was bad and/or it was harsh, one even commented that they had more hand fatigue than with any other current fork. Some reviewers suggested running more sag than others, reducing it down to around 30%, which IMO is kindof ridiculous.
I'm fairly sensitive to suspension feel. I have nerve issues in one of my hands that makes hand fatigue a lot worse for me than others, but I also ride a lot of really natural, eroded, rooty/rocky terrain that can be steep at times and is usually fairly fast. So I have this careful balance of needing the fork to be smooth and reduce fatigue, but also track well and stand up to it's travel without being too harsh. If I rode flow trails with the Zeb all day I'd be fine (and I have), but the moment it gets into anything remotely rough (rock armoring, square edges, etc), it feels profoundly worse than the Ohlins and Mezzers I've had before at the same travel settings, not only fatiguing my hands more but also not tracking as well. If I dial back the pressure some then that helps, but then it rides too low in the stroke especially when it gets steeper.
I get along OK with the 2023 Lyrik on my trailbike, but I ride that bike entirely differently because it's a trailbike. For a 170 fork on a big bike the Zeb just doesn't compare to the others I've tried, the Mezzer and Ohlins are still the standard there for me. Admittedly, I have not tried the new Fox stuff yet. Saying the Zeb is decent, I can give it that, but "probably the best out there", nope, not even close IMO.