When you knit fair isle (not intarsia), how many stitches max do you carry the yarn behind? I was wondering because I've heard many different opinions. One woman at my knitting group even catches the yarn every other stitch. I just had a pattern when I made the dots for a strawberry. It was 7 stitches red, then one stitch green. I caught the yarn once in-between (so every 3-4 stitches). If the space had been 5, I probably wouldn't have caught it at all. To me, 7 was just too far.
Does it depend on what you are doing? Like a hat you would have longer floats, since no fingers or toes go in it, but mittens you would catch it more often?