International Momentum ETF (alongside FMTM)

I am already into FMTM and am considering coupling with an international momentum fund to form a bit of a comprehensive momentum satellite in my Roth IRA (perhaps around 65/35). The funds I am considering are IDMO, IMTM, PIZ, and IMOM.

At .80, the expense ratio for PIZ feels too aggressive even with recent performance. I read IMOM may be the most comparable, structure-wise (e.g., rebalancing, weighting, etc.), to FMTM, which has logical appeal (if I like how FMTM does its thing, find the international version of that thing). IDMO is the "cheapest" (at .25) and has great performance. Perhaps the safest, but not sexiest?

Curious if any of you have thoughts on which you'd go with in this situation!