I have a Baldwin sport solo and a Russell Day Long. i've also sat on that seat in that picture. If Loren had been making that seat when I got my sport solo, I might not have the sport solo, and I'd only have one seat, not two.
All that said, the Russell is an excellent seat. I think it gives more support for longer than I think the Baldwin MIGHT, but that's pure conjecture on my part having not ridden the Baldwin GT for a long distance (or ridden it at all.) I love my Russell for the long hauls, but the Baldwin lives on the bike over 90% of the time. You will not experience better customer service than you get at Baldwin.