I've played the TEs and the black PTMs (still trying to sell the heads). Liked them all but with advancing age found my consistency was going in the wrong direction.
Tried the sti2 irons and now play the ke4 max irons with graphite shafts. Just what the doctor ordered.👍
Anyone interested in the sti2 irons, lmk. Willing to sell them as well. They are mated with the Maltby pro series shafts (r flex).