Rant: Boss wants me to run aluminum dry, I say keep the coolant on

Got into it with my lead guy on Monday over running 6061 dry on the old Haas VF2. He says coolant is a crutch, chips blow out clean with air, and saves the sump from getting gummy. I ran the same job both ways, 200 parts each. Dry gave me a nicer finish right off the cutter but the chips welded to the flutes after about 40 parts and I had to stop and pick them out. Wet ran cooler, tool lasted longer, but I was spraying chips everywhere and mopping up at the end of shift. Boss walked by and told me to just do it dry because it looks cleaner. Three hours later I snapped a 3/8 end mill on part 61. Now he wants to know why. Anybody here run aluminum dry on purpose? What spindle speed and feed are you using, and do you actually get tool life or is it just me?