I am hearing lots of good things about Laam. However, I have seen no reports of multiple 1000 mile days on one. If you don't want to do that, maybe Laam is all you need.
I have too and had both a discussion with an owner of both, have looked over a Laam, as well as ridden one for about 20 miles. I didn't want to throw them out since they're relatively new on the block and have to get a new seat now that I bought a Gen 3.
And Laams are good! But they're still not a Russell for those 1000 mile days. Those wings ARE the main reason their seat (or better described..."saddle") are successful. Russells may be ugly and expensive, but they're a case of form following function.
Back to the OP..if I did an occasional 300 mile trip...probably a Laam. Regular longer trips....Russell and be done with it.