The V3i is a hot machine but I never thought one would burn down a home!
It depends on how much time you can hunt the location. Once, or at will?
It depends on your coil selection. What do you have to choose from?
It depends on your soil. What do the V3i probes say?
It depends on your eyes and ears. How well can you interpret poor/mixed signals on the spectragraph combined with the tones id?
I might dig it all at a site like that, but I'm still not using a beep-dig one, or two tone program. Although I see the reasoning, that's losing out on valuable learning experience IMO.
In most soil in my area I'd use a Tone ID "on" correlate program and tighten up span setting to say 20 to start, wrap -94 or -93. Start off with RX 4, AM 60, DISC 70, BCR at 2. (working up as needed)
Ground Balance to lock offset -1. RD at 40 to start (I sometimes go as low as 10).
I have two nearly identical programs and the only thing changed is how it responds to iron, zero tone, or the ticking. Once I locate the nails I go to zero tone for the iron allowing for wrap.
All the information is out there scattered all over the internet. study all the information available and experiment in your ground.
Good hunting.