The measurements of the boards which comprise the four drawer case panels are a tad smaller than originally planned, so I have had to forgo squaring the ends of the boards of each of eight boards. Instead I have assembled the eight boards into four panels and will instead square then ends of these panels off. It is just an arbitrary decision at this point and doesn't affect the assembly of the panels, although nicer panels would have resulted had I squared the ends of the boards first. This also allows me to dial in as much length as absolutely possible in each of the panels.
I had also jointed the mating edges of each of the boards, the edge which mates with the other, matching board of the panel. This went well and I let the boards sit for a day or so afterwards to determine if any further cupping would result. A very small bit of cupping did result, and of course it becomes more pronounced due to the width of the panels. The next step involved scribbling witness lines across each of the cupped faces of the boards and handplaning the outside edge area working towards the middle. I regularly go back and forth with a flat, steel rule to determine how much progress is being made. I also try not to overshoot... which essentially decreases the overall thickness of each of the boards.
At this point, I have four panels ready to be squared to finish dimensions, both in width and length. A small part of each of the panels form the sides of the drawer case. I will also need to cross cut these sections off, which leaves me with four shorter panels which form the tops and bottoms of the drawer case.
I'm going to take some time and spend it outdoors today. We had wintry weather until late last week, but this week has been getting wamer and sunnier with temps in the low 70's today. We've had such a long winter up here, and this weather couldn't arrive soon enough.