I started playing w/ my sled this year, 1st I was having a low end bog that i chased (found it in the clutch) changed gears, 53 deg. helix, springs in the primary and sec., and weights. Now I am getting great hole shots, but it is shifting too quick (i think.) The skis come off the ground for the first 5 ft. then it bogs, then midrange hooks up awsome! any suggestions? ???