Wow. There will ALWAYS be a very small percentage of individuals who will go to extreme lengths. However, think about this, he completely TANKED this year to just get himself down to the middle division for next year. He spent however much money it cost to go out to the tournament, bowled terribly, all with the express point of lowering himself down to the middle division for next year . . this is the reason these new rules DO work. Guy had to completely waste $1000+ and an entire YEAR just to get down to the MIDDLE division, where he's still going to have to put in a ton of work, and perform at the right time next year, just to possibly place and make a few bucks. ZERO chance he makes enough to cover the loss this year and expenses next year. How would YOU combat sandbagging then? So just because they can't catch every single cheater going to some ridiculously extreme extents, the whole thing is a waste and a wash? But as hard as he's trying to "cheat," you're trying even harder to find something to complain about. Sounds like a bowler to me.
So you REALLY think hundreds of people are going to intentionally go to these extremes just to change divisions for next year? Myself, I'd bowl well this year, make money, and practice harder for next year. Much easier and cheaper than the alternative.