Everyone is different and only a good fitting session will guarantee you get what you need but I will share my experience. I was a TS3 guy. When I did my next fitting, TSi3 was not as forgiving and TSi2 was the better fit. Then during my most recent fitting for TSR, the TSR3 numbers were better for me than TSR2. My point is, do not think because you were in one model last time, that the same model in the current offering is the best fit. If you do not get fit, the prevailing thoughts on TSi3 is that it is less forgiving on miss-hits so your TSi2 should work well for you, if that truly is the shaft you needed.

I am close to the same handicap and have the tsi2 10 degree and one of buddies has the tsi3 and it is extremely harder to hit in my opinion. The only difference I could see was the face was a little different and that there was not much forgiveness.