I currently game TS4s with the Score shafts (.370 tip) but just ordered the TS4 DBMs and going to be using some .355 tip shafts. I’ve read that the BBGM of TS4s is .75” but I know they are dual bored to accept both .355 and .370 shafts. So is the .75” BBGM to the very bottom of .355 bore or is it .75” to the .370 step and then additional distance down to the bottom of the .355 bore?

dougmael Answered question April 27, 2025