To answer your question regarding an improvement from the TSR fairways to the GT fairways, ABSOLUTELY. When I was fitted for my TSRs when they came out (Dr, 4W, 7W) I thought I had found the set that would stay in my bag for 6-10 years. Then.....came the GTs and now they occupy my bag (Dr, 4W, 7W). For me (my opinion), GT fairways have an improved feel and I am able to launch the ball higher but in the end, it's just better all-around to me (vague and subjective I know). Now make no mistake, the TSRs are exceptional clubs in their own right, but I do believe the level of improvement from TSR to GT is enough to at least go take a swing. I have not hit the TM Stealth fairways so I can't weigh in on that one but again, I would seriously consider giving the GT fairways a try. I would also recommend a fitting and to explore different shafts, it makes a good club better.

Hope that helps!

I had the stealth 2 plus models, now using a GT2 and 3.
Prefer the sure-fit hosel myself, vs the TM system, bit more versatile.

The feel of the 2 and 3 are great. Maybe a tickle less adept at super tight lies, (slightly taller club faces than TM) but we play a bit more lush fairways. So for me, and the courses we play, it's not an issue.