If you have never owned a Minelab PI, any model from 2100 up to current will do the job just fine. Problem with a newbie buying a machine like a 5000 is they have too many options to understand for a novice. Most never fully understand what settings to use where and when. So they spend more money than necessary and it won't help them find any more gold. No matter what machine you get, you must learn how to utilize it to the best of it's capabilities. This takes time with boots on the ground. The more years you spend with a machine, the more you will succeed, provided you are putting your boots on good ground to start with. This is why an experienced detectorist with a lesser machine will likely do better than a less experienced person with the best money can buy. Dennis
Well said!
As for which VLF is the best? This summer, a prospecting buddy of mine had me pick up a Gold Bug Pro for him, and he likes my Minelab X-Terra 705 better! Who'd have thought. . . . I talked with another nugget shooter this summer that has worked the Bug Pro hard for the last two summers, and he likes his other VLF better (Whites). Maybe it has something to do with what you're used to as well. I really don't know.
Dennis has some excellent points in his little post, and I've found a lot of gold with my old 2100, and I've found some very nice gold with my GPX 5000. There's always a chance to pick up a used Minelab, and the 3500 is supposed to be the hottest pre-digital of the older bunch.
I'm really not sure that there's a "best" VLF as many of them are so similar and as they are all similarly limited, but the great truth at the bottom of all of the hype is that whatever you choose to use, learn how to use it exceptionally well. Far too many VLF's just sit in basements and closets because the buyer didn't find nuggets the first few outings and so gave up.
As Hoser said, it takes lots and lots of time learning the machine before you'll know how to find the gold with any skill, unless you're brutally lucky and get your coil over a fair sized nugget right away, which doesn't happen very often. And, even if you did, you still wouldn't have the skills to continue to find more gold in other places.
Do your research, read field tests and feedback from actual users, visit as many forums as you can, and I think you'll find that there is no "best" VLF. They'll all do the job, and the coils you choose will give you advantages as well.
But PI's? Minelab still has the edge, I believe, when it comes to PI's specifically designed for finding gold.
All the best,
Lanny