Josh, I'm not sure if you've seen the 06-07 H&P and BTP gold cards, but they don't even say "/10" anymore. The only way to differentiate is to somehow have the knowledge of what little tiny features on the card are supposed to be silver or gold.
The only place that print runs are listed is online.
The only place that a "decoder" can be found to determine Silver Or Gold is by careful comparison or asking someone online who has already figured it out.
In the case of the regular jersey/emblem/number cards, the only way to tell is by way of a foil stamp -- which means not even a PICTURE of the card will be able to tell you what version it is, since we all know that foil doesn't scan worth a darn.
I've been a big supporter of ITG for as long as they've been around, but this is one concept that irks me as much as almost anything UD's done. There are countless sellers on ebay listing "gold Stick/Jersey" cards that are the silver versions, or listing gold cards as silvers because they can't make out the minute differences. And while I'll usually find the seller at fault for not paying attention, I just can't here. No one should have to work this hard to figure out what parallel version they pulled. If ITG wants some practical, constructive criticism -- something they can put to use in future sets -- I'd be happy to give it to them and be as calm, and rational as necessary. Because I do want this company to succeed. The damage is already done with this set though...
Sorry, rant done.