Agreed Jeff, I don't think I'll be free dosing any time soon, although I do plan to switch to having a full hopper and timed dosing. After playing around with a kilo of stale beans, I can see the value in having a weight of beans on the burrs, as opposed to the popcorning I get single dosing. Single dosing works tho, and works well. I find that using the default 3s setting gets through the actual grind, then a couple of pulses dislodges most of the rest. I shined a torch up the chute to check out the retention - there was some, which after sweeping out and weighing amounted to .9g. No biggie. There is clumping, but it's minimal and I'm not convinced that all types of clumping are a problem anyway - most break up with a tap of the PF on the bench and I'm not getting any channeling. I'm looking forward to the holidays so I have some time to tear down my Londinium and give it a service and throw on some of the upgrades Reiss has sent over. At the same time I'll be playing with timed dosing and learning the software of the grinder. Hopefully that means it will be a very caffeinated christmas!