Did you mean this one?
The PTS is given as 3.75" in the catalog but tip trimming is not.
I found a packing slip for one of its predecessors (600 series; also by UST) and it reads
Driver, 2, 3 - 0"
4 - 1/2"
5 - 1"
7, 9 - 2"
Sounds like a good approximation if no one else comes up with anything.
Unfortunately the tip trimming instructions for Golfsmith shafts went away with the website. I tried the Wayback machine but it wouldn't go anywhere once I selected a dropdown from the menu.