Its really difficult to test this. Quite a few very capable people have given figuring this one out a good bash and I don't think we have any conclusive answers even now. Tbh, I don't think we'll know for sure until the day
MA decide to tell us what they actually do.
The only thing we know for sure is that whatever it is they do, Marco
thinks that they do it on maxed SIB guns as well as normal guns.