Over the last 20 + years I've had 5 Russell Day long saddles. Both solo and dual seats. A little pricey, but worth the money in my book. If you buy a used one, you need to have similar body sizes as the person it was made for. They are not Lazy Boy plush but after a couple 2 or 3 hours you realize your butt doesn't hurt. On one bike the stock seat was good for about 30-40 miles. A corbin was good for about 100 miles A Saddleman Travelcade about 300 miles. The Russell was good for as long and far as I wanted to ride.
My V85TT seat is, like I said, good for as long as I want.