I got some reflective orange duck tape and put a strip on the top shock mount of of my
trail air pinboxmy 350 has a sliding glass rear window and the safety glass has an etching at the lower center...
took a few tries, but I figure out if I sit normally, use my rearview mirror to line up the orange tape just to the left of the etching, I'm lined up !!!
as far as height --- you GOTTA get one of these if you don't have an automated system -->
Hookup memory levelat only about 7 or 8 dollars - worth it's weight in gold !!!!!
just set the bubble when you unhook and then when it's time to rehook, just raise the 5er up to the same place...
it's SO nice I may buy ten and just hand them out to any 5er owner without one !!!