I'm just about to cast on a pair of 'Longies for Leo', and having checked my gauge, I'm at 9.5 stitches per 2". Am I better to go with the 9 stitches per 2" version, or 10 stitches per 2"?
If you do the 9 sts version they will come out a bit smaller than stated, if you do the 10sts version they will come out a bit bigger, so it depends on which you'd prefer.
You could try getting a different gauge with a bigger or smaller needle.