Hello Mike,
The rules that pertain to the bring in for stud might be a bit confusing because it seems to go against the normal oversize chip rule. I have not dealt stud for a while but, tossing a $5 chip into the pot, in a $1 to $5 spread limit, with the lowest door card was regarded as a $1 bring-in unless a different amount were stated. I don't have the rule in front of me but I'm sure I can find it.
Anyone not familiar with the rule might easily force the bring-in to be $5.
Mike, if this is not what you're looking for, let me know.