This used to be on my wish list, do you have one? I saw the video before and it looks pretty awesome. I had my laser stolen a year ago and went to buy a new one at the local survey supply house. I asked about the zip level, as they had them for sale as well. They talked me out of it, saying I was much better off with a laser level than a zip level. Can't remember all the reasons, but they said getting it re calibrated every year is an expensive hassle, as you have to send it in to the company.Check out ziplevel, one man operation. Works awesome!