I'm demo-ing a Lazer HP this weekend and am getting an uneven cut, strips about where the blades meet for the most part, but just a plain, uneven cut with lots of straglers. Is this typical? Also, is it possible to mow at full speed? When I do, the cut looks really bad. I like the machine, comfort, speed, no clumps... an will probably buy one, but is there a fix for the poor cutting quality?