The ones in your pics that are bright orange are the ones.
As far as I know there shouldn't be any value difference. I'd have to look again to be sure, but the box I opened a while back has both types of backs in the same box, and in the same packs.
There are some that react to UV oddly, more of a dark ruby red than anything, but it takes a strong UV source at the right wavelength to spot them. Those seemed to be tougher, but my sample size was only around 4-5000 cards, so a different batch might have a lot more of them.
They're fun, as long as the UV doesn't give you headaches and/or eye damage. I got a bit of a headache after a couple hours. It went away pretty quickly.
I can't really see paying a premium for them, maybe a slight one if I was a player collector who didn't want to search through a bunch of the same card.
|