Between the 757D and TR20 (assuming it's the 460 head) found TR20 to be more forgiving and neutral. 757D is draw biased. Played with 757D/757S/TR20. 757S is least forgiving but longest, TR20 most forgiving and middle for distance. Shaft makes a big difference though. The stock shafts are too light and high torque if you swing over average speed.