I unfortunately have. Why unfortunately? Because I would have loved to hear the Final Audio A8000 unhinged by this god damn fit issue, but no matter what, I've tried like 15+ pairs, sizes, shapes, matter etc... None prevailed. Talking about finicky...
Hence the custom eartips, from Custom Arts though they've told me they recently stopped that activity. Anyway, that does or does not make th IEM protude any less

Actually, it'll depend on your IEM and the length of the custom eartip. But generally speaking, it does protrude more than regular tips... So you can imagine compared to fully custom IEMs.