Be upfront in Rule 0
The next most likely result is 4 of one and 6 of the other
Go with your gut and as these guys have said, perfection isnt a prerequisite of PSA 10 anyway
In fact, given the effort it takes to transform some cards, were not sure its fair, and that means its worth revisiting and possibly altering, at least according to how Wizards has been changing rules in recent days
The number seven has always been mechanically important in Final Fantasy 7 , and its subsequent versions
It can be used for all of the same sorts of plays, but rather than adding mana, it can trigger lifegain, which can put you over the threshold for some effects, or just trigger putting +1/+1 counters on things