This is driving me crazy. I have never needed to change needle sizes to get the correct tension for my knitting. However, I have a James Brett pattern JB224 which is knitted in James Brett Aztec Arun on 5mm and 4mm needles. No matter what I try I cannot knit a swatch that gives 18stitches to 10cm. I’ve tried 5mm, 5.5mm, 6mm and 7mm. Even on 7mm needles I have too many stitches. Am I missing something? I need help before I throw the whole lot in the bin. The wool is gorgeous by the way.