The reason the XL Pro work so well, and one of the things we enjoy about it being the excellent needle meter, come from the fact that it is a 4 filter design. I don't think it would have had nearly the performance nor the target ID accuracy if it was converted to a to filter circuitry. Possibly a three filter such as the MXT uses might work, but personally I like the XL Pro overall the way it is.

As for tone ID oh, I do use that function on some of my modern digital detectors where it works reasonably well but I could live without it on the XL Pro with one exception. If it employed a two-tone audio with a low Ferrous Tone for targets below the ferrous non-ferrous breakpoint I would be happy.

When these signals balance is Advanced to the preset marker and above it actually shifted into a more saturated audio performance but if the signal balance control is reduced from the preset marker the XL Pro will have a bit more modulated audio. For me? I just like it the way it is.

Therefore, the only suggestion you had that is really what many of us would like to have seen is a manual ground balance control, using the Stacked tuner like the 5900. To me, that would have made it a bit more functional for many applications but that said, I can live with the XL Pros performance with the automated GB just the way it came

Monte

"Your EYES ... the only 100% accurate form of Discrimination!"
Stinkwater Wells Trading Post
Metal Detector Evaluations and Product Reviews monte@ahrps.org ... or ... monte@stinkwaterwells.com 503-481-8147Detector Outfit: A selection of my favorite makes and models, with the best coils mounted, for the tasks I'll take on.Pinpointers: Pulse-Dive & ProPointer AT .. Headphones: 'Hornet' & 'Wasp' .. MS-3 Z-Lynk .. ML-80 .. N/M Green edition*** All working well today to make memories for tomorrow. ***