Thanks for the extra help in the comments of my last post.
I'm up to the second repeat of chart b. Coming along very nicely. So far only one mistake...not bad. I would correct it, but it's a yo one stitch off about 10 rows back. Not even going to attempt it. lol.
I may be brave enough to knit lace in front of an attention-seeking 20 month old, but I'm not stupid.