Yes, yes it does. That said, someone who is using a TSR1 successfully and is on a limited budget might decide to hold off on the upgrade if they have a greater shortfall in their bag. We all have different budgets and reasons for updating our sets. I for one, have specifically enjoyed going to the GT1 as the impact sounds a lot better. My TSR1 sounded like an aluminum baseball bat.

I myself cannot give you a feedback as I do not use hybrids. But from what I have been hearing though is that the GT series is night and day difference.