Not too sure what ground conditions Mike Hillis has issues with but he is unhappy with the F75.
The F75 has both Fast Grab and manual Ground Balance.
It works fine in soils in the 90's where I have been and at the coast where I have been as well as others. It is not difficult to learn to operate and as one can see from reports: it performs. There are only two coils and if there is any confusion as to which to use, use the small one. The stock coil for many is gathering dust because some are hitting the difficult (trashy) areas that other machines failed in. It is a FUN machine! Anyone who has one and has had other brands/models knows this thing is hot. There is NO soil the machine cannot handle so any failure has to be operator failure.
There will always be buyers' remorse when there are buyers. Maybe there is another machine Mike wants, and wants to trade-up because he wanted to sell his F75. For whatever reason Mike wants to get rid of his F75, it is not because did not know how to use Fast Grab! Once hot, now cold,.... WHY? I am done chasing rainbows for some time because this machine is THE new Benchmark in VLF's. So there is my comparison. The function, design, firmware, Display, components and tooling is all new. For the information alone, the display's features should tell you there is no comparison to a machine that was top list,.... how many years ago? Mike was one of the early owners when the F75 was released, so was I.
Limitations? We are still exploring the possibilities!
Comparing machines is not an easy task, because there is an investment of your time to the hobby and the equipment and I agree with Mike on that. Where to jump on the merry-go-round in the hobby can be a challenge for the novice. Buy what you can afford without any second thought. Buy what you trust by talking to the users who BOUGHT their equipment. Wait on new models if you do not have the stomach to take the plunge. We all like to make well informed decisions on the things we buy and own because we like to have pride of ownership. I love my F75. It puts smiles on my face. It is a surprise in performance but I am also actively testing it to do what other machines I own cannot do. At this point, I cannot understand why anyone would sell such a good machine except to trade up for a more expensive new release they cannot afford, looking for the rainbow. No pulse machine can do what this VLF can. A pulse may be deeper seeking and harder hitting on deep targets but we need to
see what the limits of depth and discrimination are. Stay tuned.
My suggestion is get the best VLF and Pulse you can afford if you must own both (not the most expensive). They are like night and day.
Why the need for a small coil? This F75 sees so much of what is in the ground that a smaller coil is required in trashy locations. Is that a problem? We are looking for targets in the dirt so everything is fair game. The more you can detect in the ground, the more targets are removed from the ground.
Sunny Jim