Was curious if the group had any thoughts on this. Been flying my pitts still searching for that elusive hands and feet off straight and level flight. I have added 2.5 washer thickness in between the cross tube for the horizontal stab. The problem is even with full trim (only one tab on my elevator) I have a very heavy forward stick. Was thinking of adding a few more washers but not sure. I don't want to go through the process of adding another trim tab on the other elevator. Has anyone else experienced this in there s1's?