you subtle dog you, it's all about the eye dude jealous bastards all of you i think that pretty women should be made aware that their beauty enhances the lives of others, and by golly i'm gonna tell 'em. as far as the depth of laterals and minimum cover requirements for low voltage utilities goes, we're not going to get anything in writing to help the trade in respect to liability. it's to your advantage to own a locator of some sort and learn to use it well, the 521/pro-700 is ok for all around locating but they use a 1748khz signal which can bleed to other paths easily. if you are in a congested area, locate the deepest utilities first and check depth both ways to verify the utility. i have had very few damages due to my locating all usa markings that are done by others.