I would love to be a tester for the M5 or M6, I currentl6 play with a M4 D type, 9.5 set to 10.5 loft. Shaft specs are Mitsubishi Tense CK series 50 Flex -S. Fitted by TaylorMade at my Club Corp club. At 67 yearsold old a few more yards sure would help my score.
Original M1 430. 9deg. Kuro Kage. X Flex.
I think I would make an interesting canidate for testing. Owned a TM 580XD back in high school. Got it new without really comparing it to other options. Hated the club, thought it was utter garbage compared to other clubs on the market and pretty much wrote TM off to never have another one of their clubs in the bag. Fast forward I took about 5 years off from college to getting a job and got back into it. Hit an M1 at a Demo day (all manufactures were there) because I like BMWs and the name M1 sounded cool. Absolutely loved the club so I quickly added one to the bag.