Digital BW, The Print

My testing on Conetech Wells River, Lumijet Woven Fiber, and Media Street R=
oyal Jazz indicated that they are all William 
Turner 190. They seemed identical in every way. I confess I tend to shop ar=
ound a bit for paper, recently Media Street 
lowered their prices even lower than Wells River, so I bought a box of Roya=
l Jazz. Though it looks the same, it's printing 
quite differently (worse), more so than normal batch differences.
I'm just wondering if anyone else has been using these papers from the diff=
erent sellers, and if you've run into any 
problems.
I find this rebranding thing a constant hassle, I wish these people would j=
ust tell us exactly what the paper is.
What's the big deal? I'm wondering if Hahnemühle is selling batches that fa=
iled to meet manufactures' tolerances at lower 
prices to some of these outlets on the condition they are rebranded, allowi=
ng them to underprice the others..
Anyway, any other Wells River users out there with experience with these ot=
her "versions"?
Tyler