On occasion I need to vacumm up clippings and leaves with my mowers. Has anyone used the ultra-vac attachment for the Lazer HP and is it any good. Also, does the vac pulverize the grass clippings and leaves like a walker mower system does? Does the system rob a lot of power from the mower, as the one I looked at is belt driven from the deck pulleys. Any info is appreciated - thanks.