Good luck on your hunt, NM.
FWIW, I talked with a guide who told me that in his experience the TMZs on average make for "easier-to-follow" bloodtrails. Consequently, if you're getting similarly good groups with TMZs and any other bullet, he'd recommend going with the TMZs, but otherwise go with the most accurate for your gun. I know, that's somewhat anecdotal, but so far it's a no-brainer for me because in all of my experimenting with several different load combinations for my Triumph, the 290 gr TMZ BTs, combined with two triple se7en magnums pellets and a Winchester triple se7en primer, is consistently giving me the tightest 100 yard groups--about 0.75" - 1.25", with an occasional flyer. I'm still experimenting with other loads for my elk hunt that starts 10/16, but if I were leaving tomorrow, I'd be pretty confident with this combination for anything under 200 yards.