Howdy and thank you so much!!
I did the project because I wanted to really get myself super familiar with the M6 and also to push myself to see candid stuff the same as I see my staged work. So far its been tough, as you say, but fun.
I use all Kodak Portra 400 film. I get it all processed at Kodak Digital Image Center in Glendale CA. The guys there are amazing.