Scrooge:
Let me summarize my thoughts on the White's BHID300;
1. I've read both sides of the mineralization issue and I'm inclined to believe that, adjusted properly, the BHID300 will do just fine in black sand. The positive responses seem to come from those who actually use the BHID300 in black sand environment and the negative responses seem to come more from hearsay rather than actual use.
2. My experience with the BHID300 in Gobble-Gobble super tune had the machine just purring along and the lights are, indeed, accurate. Be advised that this thing is super-sensitive (12' Coil), and if you carry your scoop, shovel, or other metal objects too close it will de-tune it and cause erratic behavior. Not to mention the inability to ground balance it properly.
3. This is a deep seeking machine. When I said that I was digging targets 16" to 18", I wasn't kidding. Using my 12" bladed shovel in wet sand, when I dig a hole with it, it stays dug. Having it in the hole up to the hand grip in order to recover a target just amazed me. It's no wonder that I had to give up on chasing many targets with my scoop.
4. So....you have full sensitivity (Gobble-Gobble), deep, ALL METAL with accurate lights. In addition you have the All Metal sounds that vary with different types of targets. Kind of played a game deciding what type of target I was hearing before I ever looked at the lights and it didn't take long to get pretty good at it.
5. Finally, this is a fast sweep machine and with the 12" coil that means lots of beach covered. Deep machine, accurate AM Disc., good digging tool, lots of beach covered==== in my book that means lots of good finds. Get to the good targets before the slow sweep VLF's and leave the iron for the PI's. HH
Ron