Ok, I finally took the plunge. I just reconstituted a 30mg vial of Amopure Tirz purchased during the Labor Day sale, with 1.2ml of freshly opened Hospira Bac Water. Injected 20 units (5mg) subcutaneously at the 1 o'clock position near my navel. Went in like butter with zero burning noted. The only issue I had was that the rubber stopper is pretty burly and I had to fight it with my insulin needle, dulling it in the process, so for the stick itself I had to give it a little more "oomph" than I would like. But happy to report zero burning, we'll see how effective it is. I'm already debating going up in dose but didn't want to do it with a new supplier, so we'll see how I feel next week.