Is this for Knitty’s Bob & Weave? Just do as it says, co 5, yo, rinse and repeat. They have you drop the stitches all the way down where you yo on the cast on row. Note that it does say to use long tail cast on though.
A lot of times, even if something sounds funky, I just go ahead and trust the pattern and try it out and see if it works. Most of the time, I get one of those lightbulb ‘aha!’ moments and I understand why.
I hope that makes sense. Just co 5 times, wrap the yarn around your needle, then continue casting on. It sounds weird but it works!
Edited: I just noticed Ingrid’s sig that says trust the pattern. hah! Wise advice. I didn’t even notice til after I posted!