megan coilover settings

[1.5]

With my wheels mounted now I am trying to get my fitment and ride height just perfect but I'm running into some issues. I have Megan coilovers and sit on xxr 531 in 15x8 +20 with 195/50/15s

1. My driver rear tire is getting beat up. All of my other tires have little to no rubbing but my rear driver tires is getting so gouged it looks like I could be splitting my sidewall in the future if it keeps up. My fronts are rolled with a slight pull so i can see why those would not rub. The rear passenger side does not even have any wear marks. Both rears are set to springload practically 0 and the stiffness is set to 6 (1 being hardest 32 being softest).

2. In the fronts I use the spacing between the springload collars and the locking nut on the bottom shaft to measure ride height. The passenger side is set to 39mm between and the driver side is set to 42-43mm. However the passenger side has ~ 20 mm between tire and fender, and my driver side has only ~ 5mm. So the passenger side is set lower than the driver side but sits higher??? What is going on here?

I have a theory that both issues are caused by my weight being only on the one side. I rarely drive with a passenger except when my 115lb gf rides in it every now and then. I weigh ~230 lbs right now and could the fact that I only sit on the one side be causing the passenger side to not settle? Is my weight also too much resistance for the damper to rebound against causing my fat ass to push the rear on top of the tire?

Thanks guys.