On the d6

OK. This is getting mathematical, not to mention repetitive. Here's the summary:

Last night, I knit up a swatch on 8s. Far too loose, and far too spendy; I only have 69g of yarn to play with, so my swatch must not exceed 9 grams. Hopefully, it'll be a little less, and felt square, which will give me a huge margin to play with, but that would be lucky. So, I'm assuming it'll be a bust that I might be able to make a catnip pouch out of. Anyway, 8s are too much for this yarn with my tension; 7s are much better. I get a lovely fabric, and I'm close to figuring out the right size. I've just frogged another swatch, in preparation for a go with a narrower width. This swatch was 18 stitches by 24 rows (including caston and castoff) and came out to four and three quarter inches wide by four and a half tall. It also came out to nine grams dead on, so I carefully wound it into its own ball (leaving it attached, though; I won't cut it off until I felt it). If my tension stays even, I'm looking to try 16 stitches by 26 rows, which should (fingers crossed!) felt square and use up the same amount of yarn. If it comes out roughly the right shape knitted, it'll be time to felt it and correct from there...