I just got a new BHID 300 and put it on a straight shaft. I hunt the NJ beaches. To me, its a great detector. Deep, stable and easy to use. First starting out, ground balance as required. Hunt with the sensitivity on the pre-set in discrim mode. When you get used to the detector, you can up the sensitivity as long as it is stable and hunt in all metal.
The all metal mode can get tricky on some targets ( I found out some rusted bobbie pins were coming up in the mid tone ID in all metal, but were discriminated out in discrim mode). But, I dug several DEEP nickels ( at least 16 inches down) in all metal. Thing is, in this mode, on those nickels , there was only a slight change in the threshold and there were no lights that lit up. In a way, that is a very good way to determine its a really deep target.
All in all, I love this detector. I also have an Excal 1000, which I love too, but at this time all I am using on the beach is the BHID 300.
JC