Both are hollow heads, one forged the other cast and one head (TS1) filled with a polymer.

It looks like, from the specs, that the sti2 is actually a slightly smaller head but a slightly thicker top line and wider sole than the TS1.

Anyone hit both and have opinions on the differences and playability of the two?

I am planning on having a set made this winter and was set on the TS1, but then saw the specs on the STi2 and am intrigued.

sparky14 Answered question December 26, 2020