The RDL is the first seat I've owned where I wish the gas tank was larger so I didn't have to stop to refuel. Conversely, when I had the stock seat, even with the Utopia backrest, the closer the fuel gauge came to "E" the happier I was as I could walk off the numb butt, tailbone ache. You are in a pocket with those wings and however it works it makes the journey effortless. Mine did come 1-1 1/2" higher but has compressed over the 18 months I've had it, Russell projects about 5%. Here's a little video I made comparing the stock to the RDL heights.

https://www.youtube.com/watch?v=hjcwAXq3Uq8&t=5s