I haven’t read all replies yet but I too purchased M2 irons in 2017, 12 months later my 5 iron was coming away from the shaft, upon taking it back to American Golf (UK) the store assistant noticed it had face cave before spotting the hosel issue, I’d never heard of face cave before. After checking other clubs 3 more had the same issue.
Taylormade replaced the M2’s with M4’s straight away and I was happy. Until back in July when again the 5 iron was coming away again, I was very near the end of my warranty but they agreed to repair all the clubs by re-gluing the heads. Yesterday I was at my local range and after 1 swing of my PW I had to have the range closed and walk 125yds to retrieve the head off the range.
As I’m out of warranty now, and after an email to the UK head office they have offered me 2 options. 1. Repair my M4’s and extend my warranty by 12 months. 2. A new set of M6’s but no warranty.
I’m not sure what to do tbh.
