Welcome to the forum, Dave.
IMO, the difference of 1/16" should not make any difference, IF you are going to reference off the fence or use a bearing.
If you are going to use guide bushings than it will make a big difference.
Are you able to just re-drill the insert plate to the correct dimensions?
I don't mind if other members disagree with my comments.
I don't profess to know everything, and I may learn something new.
"Never attribute to malice that which is adequately explained by stupidity."