Yeah so seems like only modmic or similar mics would work if you want a headset mic. Surprised a competitor hasn’t emerged at all, seems like a decent niche and modmic have gone a little silly with their prices.Ah OK. I know the other factor with mics is that when they share a TRS connection you can get cross-talk (other audio gets picked up, or electrical noises etc.) because they share the same ground loop. Any mic that uses it's own 3.5mm connection should be immune to. Now you mentioned this any V-Moda, Seenheiser BAM or similar mics are going to have this issue as it's one cable. An Antlion Modmic that uses its own 3.5mm (or USB) won't.
Hopefully you like them after that