Eguller I've been curious as to how they play versus the TS2 & STi2
I can answer this one, as I have had all 3. And the TS1 as well.
To me, the PTMs look and play more game improvement than the other 3. Although the specs say differently, the PTM head is visually larger than all the others. I do think the PTMs are the best looking and best feeling of the bunch. I am more visually acceptable of smaller heads, so the PTMs just did not suit my eye, and I had a little bit of a problem getting the clubfaces square at impact. If you are ok with the head size (most people should be ok with it), you won't find much better.