Good morning, just had to say hi,lots of kids!! someone like us , I have 5 sons so our family is 7, not far behind you.
How do you go finding time to knit,I put out a decree that house work is out for the day as I start a new project,then try to set an hour aside each night to work on it. I have been working since May as a school gardener so am even more pushed for time .Big families are fun aren't they!
Sorry I can't help with ply conversion,
I have often wondered if you use the large size in the pattern with the smaller ply ,but haven't got around to trying it,