I lost sleep know that the goo may turn hard since I opened it up, so I got up and flushed it out a bit.
Then when I got home from work I thoroughly flushed it, all directions, push with water, suck with shop vac, push with blower etc. Its as clean as a whistle, thanks for the flush/coolant link, very helpful, once I run it I will also follow that procedure and flush with a cleaner while hot, great article!
My list of "must do's" continues to grow as I look on the forum, but like Jackgeiger I'm looking at it as a hobby rather than a roi. I ordered some parts yesterday from my local bmw dealer, Ouch! (Thinking I'd have them the next day). But their a week out so that help pace me and address items that I may have otherwise overlooked.