Seems interesting...although I find the notion that the pick used, as long as it's in the same ballpark for stiffness/material, would affect the guitar sound noticeably. I think it goes in the same bin as any belief based on nothing tangible until I hear/see an actual test where a robot uses different picks to play and in an A/B test they can be told apart. I don't notice any difference if I use a piece of cardboard or a plexiglass, or play with a piece of wood...but certainly the pick affects the playing feel a lot, and these seem an interesting concept.
Although I was a Dunlop Jazz III guy for a decade now I have been using Wedges for a loong time, .60 soft gray ones...nicely flexible. Have to check these out when I see 'em somewhere.
Dee
"When life's a biatch, be a horny dog"
Amps: Marshall JVM 410H w/ Plexi Cap mod, Choke Mod & Negative Feedback Removal mod, 4x12", Behringer GMX110, Amplitube 3/StealthPedal
Half a dozen custom built/bastardized guitars all with EMG's, mostly 85's, Ibanez Artwood acoustic & Yamaha SGR bass, Epiphone Prophecy SG, Vox Wah, Pitchblack tuner plus assorted pedals, rack gear etc. for home studio use.