I just recently received an XLT, and I don't know where to start. I read through the manual and I still can't seem to comprehend its functions. The VDI numbers confuse me way too much to the point where I almost threw it out the front door one day during a bench test. Any information on this detector and its controls would be salutary to my coinshooting. I can't seem to find anything older than 1990. Hey, but at least I'm giving it an honest effort. What can you professional detectorists add in order to jumpstart my hobby?