Whoa. 10,000 miles on a DRZ seat,you may in line for some sort of award or plaque,might be worth checking in to. After 45,000 miles on my DR650 I have settled on a Sargent seat,its not hard,its not really soft,vaguely springy feeling. I can do a 600 mile day and be ok. Like a Corbin its about 13.5" wide in the back. Like you I will end up going for ever with out stopping so its a toss up that way. Much enjoying the report!