Does anyone make one? The one from Harley hits me about mid way up my back and really confines the rear passenger. The one we had on our '05 Road King was smaller, sat lower to the seat, was shaped like a triangle and hit me at my lower back, which is what you need for lumbar support. The dealer tells me that backrest won't fit the SG. The attached photo is what I'm after. I'm not opposed to swapping the seat, although we're happy with the stock seat.