Well the strategy was a big success. Great chat and merriment took place this morning AND the JGG got a kickstart, so things are looking up.
Mind you, I got home and discovered that I'd been using the wrong needles. Shoulda bin #6's not #8's. Natch! It was bugging me all along that the motifs looked a little bigger on the 2nd sleeve than on the 1st but I was busy ignoring that little voice*. A not-unusal-but-foolish case of continuing to knit against one's better instincts.
Besides I blamed it on the fact that I had to frog the 2 cable motifs down to the rib (don't panic, it was only about 6 rows) and reknit them with the hanging strands.
Anyhow, we're back on track now and 30 or so rows to the good.
*(Anyway, I don't always do what the voices tell me. Or I'd get arrested.)