I dropped 60 pounds a few years ago and have kept it off entirely by focusing on diet. The most exercise I ever did during the weight loss was to walk a bit. It is definitely the largest factor in weight loss but I am sure that I would be healthier if I also exercised more than I do.
Meh, I voted to allow it to continue, as I can't see how it provides an unfair advantage. To me it looks like you're taking something that should be so simple, natural and flowing and making it overly complicated and mechanical so it doesn't seem it makes putting easier. Then again, I've always been an arc putter with a conventional grip and think straight back straight through and nontraditional putting grips are for the birds.