Depends on if they did a straight set of all the same quantity, say for instance, 100, and inserted them into the packs. This would make the odds of pulling each the same and the odds of pulling the YG the same vs the production run. (This would mean if the set was 90, 30 of which are YG, then you should get 2:1 for base vs YG. This would mean that 1 in every 3 should be a YG.)
But this is hypothetical. To get better odds, skim through case breaks of the product to see how often each black canvas variant are getting pulled. A few breaks should identify a rough, a larger pool of 10 case breaks would seem like a decent sample size. If you want to see if region affected the odds, breaks from all around the countries (US, Canada, elsewhere) would be nerding out, but could provide insight if certain cards/players are getting pulled more frequently. There is Titan sports in Florida, Steel City in Pennsylvania, Dave & Adams in upstate New York, Clouts n Chara in Canada somewhere (Kitchener), GP Sports in Toronto…to name a few locations that have stream break feeds and videos.
Good luck!
