I've taken long trips, each 20+ days, on my 2018 stock seat without a hint of a sore rear end, yet my girlfriend uses a Airhawk on the back and others on this string ache with the stock GW seat. I love the seat, it's much better than the K1600 I had, which had a very similar seat to the GW. The K1600 was very uncomfortable for me as many on this string describe their GW stock seat. For me, after getting smart and selling the K1600 for the GW, I discovered it was the leg position on the K1600 that was the issue, not the seat. I'm not an expert and not trying to influence any opinions, just sharing my personal experience. It's possible the discomfort with the seat, as was the case with me, is leg position.