I just don't know how much of a difference it will make. You can get different results with the same gun shooting the same shells on the same day. There are so many variables that I don't think there is a way to objectively tell if it makes a difference.
Shoot what you've got and if you are happy with the results then why bother. Honestly, tss mitigates poor results so well that you might just be wasting your money altering a shotgun but potentially you could damage your barrel.