i just noticed this with my trailer too. i have a 20 mile tow to lake with some hills. my drivers side seems to be worse then other side. both sides the same for you?
08 lsv all red- dual battery system, kicker 700.5 and 450.2 amp, 10" kicker sub, wetsounds eq, polk db651 cabin speakers, exile xm7 tower speakers, ss thru hull fittings, seadek pad, evolutions cover
https://forum.moomba.com/showthread.php?t=10664