Howdy D&P
I bought one of the first XLTs on the market, (1994) this was also my first detector ever. I figured why not start out with the best in the first place. My idea was to buy a top of the line White's and not have buyers remorse later. I learned on this detector for six years,and made some good finds with it.
The more i used the XLT the better i got at finding old coins with it. I learned about the modulated audio, and signagraph response to deep coins. I thought it was the cat's meow. That is until I bought a Tesoro Toltec ll for my Wife, hehehe. There is a difference between a 2 pole filter Tesoro and 4 pole filter XLT while working in the trash. In short, I thought the two detectors worked together quite well. My wife liked the simplicity of the Tesoro and we could hunt side by side without interference between the two detectors.
Then in the year 2001, White's brought out the new DFX, I just knew this detector is for me. So I traded the XLT for the new DFX and really liked it at first. It seemed to be deeper than my XLT, as the signals seemed louder in strength for the deeper coins. But for the six years that I used it (sold it in 2007) it never found anything as deep as the XLT( 2 cent piece at 10 or 11 inches) and most finds were made at 6 or 7 inches deep.Also the the machine was twitchier, for lack of better word, it falsed alot. IT was never as smooth as the XLT and certainly not as smooth as the 6000 Pro XL that I bought last year to replace the DFX. Just my views and you will probably receive more on this subject.HH.........Hombre