I had the passenger backrest installed on my new Cross Roads last year. After a 6-hour trip to Sturgis, my girlfriend is no longer keen on this backrest. It hurts her lower back. She is a little taller, 5'-10". Looking to sell the backrest and find a suitable replacement. I had Ultimate Seats on my last bike and had no issues. Unfortunately, they don't make them for Victory bikes, yet. Any suggestions?