After a Titleist fitting, I special ordered a set of T100 irons (4 - PW) with KBS C-taper 120 S shafts and specified a swing weight of D3. Titleist did a great job; all the clubs are D3. Unfortunately, I think the fitter and I overestimated my strength, and I'm struggling to generate my normal speed and distances. I'd like to reduce the swingweight to D2. Is it possible to do while keeping the same shafts? How did Titleist set all the clubs to D3 in the first place? Any guidance would be much appreciated. Love the clubs. Thank you.