I've got a compact and full size tripod.They have two different types of ballhead and I'm not particularly fond of either. I want to get one standard ballhead for both. I use a GH3, primarily with 12-35, 35-100, 100-300. Something stable enough for the 300 is necessary. I like lever plate locks, because it's quicker and easier to pop the camera off. I have less of a preference for the swivel locks. Knobs or levers, either/or, though it seems the swivel locks are usually the same style as the plate locks. Separate locks for panning and tilt, for panoramas. I don't have a preference for plate style (though something that could be used on a future long lens would be preferred slightly). I think $300 for a lump of lubricated metal is absurd. That is not a dig at you or your own preferences. Might be willing to go above $100 if it was everything I could dream for in a ballhead. Thank you for your time and recommendations.