Okay well I just did a blindfold check. I started with a control group of for decks. The control group included Expert at the Card Table deck(Erlinger), Bee Club Special(Ohio), Tally Ho(Ohio), and Bulldog Squeezer(Ohio). The control group was selected because the EACT and the Club specials use the same stock but came out of different presses and had different quality controls, and the Tally's and Bulldogs have the same stock but were run at different quality controls. So I got to test my sensitivity versus stock, quality control, and finish. I pegged the stock 5 out of 5 times. I was able to detect the quality difference between Tally Hos and Bulldogs 5 out of 5 times. I was able to detect the quality difference between Club Specials and EACTC cards 4 out of 5 times.
Then I did a blindfold test between three different UV500 decks. Black Tigers, White Ghosts, and Blue Masters Edition. The Blue Masters had a funny "pop" to it...a peculiarity of that particular deck...so I was able to peg it 5 of 5 times but the difference between the Black Tiger and the Ghost was pure chance and I could feel it at the time. I think I got it right 2 times and I got it wrong 3.
So at this point my findings suggest that I can tell the difference between stock, finish, and printing quality but I cannot tell the difference in the paint job. Now all that means is that I can't do it. Perhaps you can tell the difference in a paint job but at this point the ball is in your court. I have heard that claim from many different reviewers(that a black card handles different from a white) but as of yet none of them have proven that they can tell the difference with a blindfold test. Thus the logical conclusion is that the difference you feel is psychological and not due to the performance characteristics of the card.
I'm sorry if it sounds like I am harping on a very small point but one of the reasons I got into card reviews in the first place was that their were way too many "Fanboys" writing card reviews that were basically opinion about how a deck looked. There is now way to completely avoid that but if you are going to write reviews you should at least try to rise above personal biases. People are smart enough to look at a card and decide for themselves if they like the look of a card. They don't need us to tell them how pretty or ugly it is because that is totally subjective. What the readers need is information about handling. Anglo Rugs are a perfect example. They are a beautiful card, one of the prettiest IMO, but they way they handle is so specific. It has so many strengths(packet cuts and aerial packet cuts, modern card slights dependent on single card glides and doubling techniques) and so many weaknesses(Atrocious fans, spreads and dribbles, try culling with it...Ha!) So for certain people with a very powerful style in flourishing or magic it could be the best card ever. For other people who have a smoother more elegant style it becomes a pretty paper weight.
So I am droning on...sorry. But the point is that claiming that the color of the deck makes a difference in performance is a pretty big claim. You're telling people that you will get better performance from the white version of the deck versus the black version or vice verse. There are people who can't afford one of each. If you are going to recommend that they pick one color over the other, a color they might not like as much, because it "performs better", then you need to prove that.
Now I did video tape my preliminaries so if you want me to prove that I can't do it I'll be happy to post that. Also I did 5 tests of each(control and the test group) witch is not statistically viable so if you want me to film 10 more attempts(15 the statistical magic number) I'll be willing to do that as well. What is sure is that I won't be satisfied that anyone can tell the difference in color by touch alone until I see it.
Let me finish up by saying that I do think you have some good reviews and I reckon you and I would probably agree on most things in regards to cards and card reviews but the claim that color makes a difference was just a bit to much to swallow. You do, however, produce a good review and I hope you keep it up!
Cheers!