I have finally solved the issue of landing Stearwing A300. Adjust front landing gear to 0.3 friction and rear landing gears to 2.0 friction. In the Aircraft Config, Height adjusted to 5 and Min Speed to 90. I posted this to show others that 99% of steering problems after landing come from friction control. Another problem I've noticed (I'm not super sure) is clicking warp speed 4x and leaving it to automatically reduce to warp 1x during landing phase makes the plane undercorrect landing trejectory and forces it to abort. Oh and for those who want the script to run reverse thrust after landing, go to Custom Action Group 4 and click on engine and then there is an option to click thrust reverser. And for those who want the script to not use emergency brake, just find the action group that has landing gear brakes and click to remove it (I and Kartoff from the videos I've watched never really uses emergency brake during auto land).