I presently run 2 accounts ... one for advanced mining (Hulk, T2 Crystals -- Refinery Efficiency 4 and Mineral Specific Efficiency 4 {obviously ... I need that for the T2 crystals}) and one for Hauling (Mammoth, cargo expanders -- 20 days to Obelisk). Most of the time I mine in .9 space but it (obviously) gets mined out quite fast. I was considering dropping to .7 space, maybe .5 space. As a result of this shift, I have considered opening a third account for rat patrol ... maybe Kestrel or other missile boat .. for protection. I have good tanks on both the hauler and the miner, but it's annoying sitting there with 3-4 rats shooting at you the whole time. I have also considered training up Sentry drones. Anyone have a suggestion on that? Are Sentry drones enough to blast annoying rats into oblivion in .5 space?