Decided to do week 5 in the first column instead of re-doing Week 4 again. Sometimes the illusion of progress is more important that actual progress, as Column 2 in Week 4 is tougher than Column 1 in Week 5.
I wasn't paying attention to the actual numbers when I was doing the push-ups (kid wrangling and counting doesn't mix very well), so I ended up doing 17/20/17/15/22 on a spec of 17/19/15/15/20. Still having a bit of a wall when I get into the low 20's. Next is the switch from 5 sets to 8 sets - that'll be interesting...==========