What is the make model horsepower power suction of the vacuum cleaner you are using here? I've found that with too much horsepower it's no fun and can hurt and doesn't work. I tried using the one I had around that is a 3.5 horsepower wet dry shop vac and it was no good way too much suction .Looks like you found the right vacuum horsepower and tip to get the job done. Hot video btw.