<html><head></head><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1533061618142_45323" dir="ltr">Hard to get a definitive answer about tongue weight, but after some searching it does appear that 5% for boat trailers and 10% for utility trailers is in the recommended range. I pulled the sub back about 15 inches which got it to 5% and then took it for a short drive. Based upon sound only, it does sound like that forward spring is "topping out" against the frame when I hit a dip in the road but also recovering. When I stopped I could see that the spring eye was not butted up against the frame, unlike the other night when I had tongue weight at 10%. Not much of a road test but I did get up to 55 without any hint of sway. I may pull the sub back another inch and then take it for a longer road test tonight including the highway.<span></span></div><div id="yui_3_16_0_ym19_1_1533061618142_45323" dir="ltr"><br></div><div id="yui_3_16_0_ym19_1_1533061618142_45323" dir="ltr"><br></div></div></body></html>