Total overkill! This little device was discussed long ago, and properly slammed. Not that it doesn't work, its just totally unnecessary, and way too much $$$ when there are other options out there.
Even with a vista-cruise or throttlemeister engaged, you can overcome the friction and still easily roll off the throttle. Its just not that big a deal.
So why pay a lot more $$$$ for a gimmick you don't need?