What's the Perfect Market Cap for Mining Companies (Exploration)?Hear what Nick @MiningBookGuy @TheNextBigRush and @Fi_Fighter have to say on what sort of market caps are interesting for exploration companies in the junior mining sector.Should you invest alongside Ross Beaty, Rick Rule, Frank Giustra and other heavyweights? Should you wait until a JV with Barrick, Goldcorp and Newmont?Or is it better to go in when the project is still unproven, and much cheaper as a result? Company mentioned: Orca GoldFollow me on:https://twitter.com/TheNextBigRushhttps://www.facebook.com/TheNextBigRush