Hello - can anyone help me match what the "closest Titleist equivalent" (stock & custom) to the shafts in my 1998 Clvnd Tour Action TA3?

Here are the specifications from Clvnd on all the shaft characteristics in my current TA3s:

Clvnd 1998 Tour Action TA3 Dynamic TT S 75-85 Iron 5ir 9 5/8 38.00 120.5 15.10 1.8 304 D1.9 0.355 0.580

I'm definitely going in for a fitting but wanted to see what the "closest equivalent" was in advance.

Thanks in advance for any insight,

Paul