Think seats discussions are a bit like which tyres. There are lots of factors that make a seat comfortable, but mostly the human one. I ride about 10k a year and have had standard seats from my first RT LC in 2014. My bladder always necessitated stopping before the seat became really uncomfortable. But on my 1250 I found the seat quite uncomfortable and it only started to bed in around the 6k miles point. Then I bought a Sargent seat second hand to try. And I can honestly say, it is very comfortable, hasn't helped my bladder stops, but it is good. But it was a used purchase, so probably broken in by the previous owner, but not for 1000s of miles. It would make me buy another if I needed one.