I'm running a 3500 with a Joey mono, Wallaby mono and the standard Minelab 11" DD and could use some advice on my next coil choice. Which of the big round mono's would slightly overlap into the Wallaby's effective range and deeper? Although gold would be it's primary use, I'd like to dip my toes into some relic and cache hunting too, so I'm looking for as deep a reach as possible without leaving a gap between the others. In other words, something that will pick-up where the Wallaby leaves off. -Joe