If this is a Dynamic Gold S300 you would follow trim code W2 if you are installing the shaft into a bore through. If you are installing the shaft into a blind bore you would add 1/2″ to what it says on line W2. If you are installing into a standard bore you would add 1 1/2″ to what is says on line W2. Most of today’s drivers and fairway wood are closer to a standard bore. Britt’s answer is actually incorrect in that if you are starting with a bore through driver the tip trimming would always be 0″. The shaft was made to be it’s listed flex in a bore through.