I only actually did it!!!! A few days later than planned due to various things but I actually ran the 3 minutes both times! I did think Lovely Laura had gone to sleep or forgotten about me during the first lot of 3 minutes as it seemed so long but bless her she spoke to me eventually. The second lot of 3 minutes was somehow easier and therefore shorter (!) and I'm now looking forward to Wednesday morning so as I can do it all again.
I'm truly amazed when I think of the struggle W1R1 was, and now I can run 3 minutes without stopping. Twice. Beaming from ear to ear.