Situation: Ore scanner required to see ore that comes in lumps. Drills held in hand work with scanner, a blue outline is seen. HV with 3 items of interest; A harvester (the long twirly thing that you cut trees down with, the harvester - not the HV!). A T1 or T2 drill and A turret drill. Use turret drill. No outlines seen. Remove harvester. Use turret drill. See outlines. YAY. Add harvester. Use turret drill. Outlines gone. Boo. Theory: My understanding is that for the HV, to see a blue outline, you need the first slot of the HV to be a drill. Question: If my theory is true, why does the harvester force itself into the first slot, if you add it after there are T1 or T2 drills already attached?