Yesterday I did w4r2, after doing r1 I was pretty confident I'd be ok, but this time was different, I found it really tough. But there were some different factors. I have a bit of a cough, it's warmer and I had the baby in the buggy.
So it was slow and difficult, but I don't really care about speed or distance at this time, for me it's about doing it, rather than not doing it!
Having said that it was nice to be out in the sunshine!