Brian, I have some malt there that I need to mill shortly. I'd be more than happy to test a mill for you and give some feedback on it. I'd test it and give any feedback wanted.
I'd not call myself an expert but I can certainly mill the grain and then make a call on it dependent on my efficiencies matched with that which I have been getting from premilled grains. I can then also brew the beer and let you know how it turned out, or even get feedback from a meeting of the Beoir crowd at one of the meetings, but that would be hard before June due to the timescales involved, it's a bit tight on time presently.