easy adjustment
I had the same problem. I moved my winch mast back 4 inches, and it made all the difference in the world. I wanted my tougue weight at 225 which was 15% of my combined boat and trailer weight.Initially, I had move it back too far, even though that was only a couble of inches, and it was so light that my truck tires would spin at the ramp trying to pull it out.Get your bathroom scale and place the tongue jack down on it (with a piece of plywood to protect your scale) and push your boat back on its rollers if you have them (impossible to do with bunks) until the weight on the scale registers the 150 to 200 pounds you would like it at. Then loosen the bolts on your winch mast and move it into proper position against the bow. Make sure your boat is loaded like it usually is for highway travel, motor, gas, battery, cooler, spare tire etc., otherwise your toungue weight will change if these are loaded after your adjustment.If you cannot achieve the ideal tongue weight with the above, then your next strategy is to move the axle forward, but it is much easier to move the winch mast first to try to get resolution.