We're kinds hijacking the thread here, but, I understand sandbagging to be, as Jim said, keeping your average high and what not, to stay in the lower tiers, for the purpose of winning tournaments and such to gain credits.
So, the measures put in place to combat sandbagging, as it relates to moving up, are things like beating higher tiered players in MP and winning tournaments, correct? In a sense, it makes it easier to move up, if you play well, in which case, the measures can have a desired effect on both sides of the issue.