achillies,
I used to have a BH Big Bud. I liked it real well. I found my first Barber quarter with it at about 5 1/2- 6" deep. The only problem I experienced with it was that it would eat 9v batteries like they were candy. Really, the two 9v batteries would only last for about one day of hunting.
I wish I still had it though. Of course if I had kept every MD that I have had over the years, I would have a pretty good collection 8)
Hope you find a lot with it.
Tom