I’m trying to convert a 1950’s crocheted head scarf (head band warmer) into knit on the round, but I have no clue how to make use the decreases only on the back-half. I thought I could just bind off the front portion (3 in) and work straight for the extra width of the back (6 in), but then it won't fit right because it'll just be this weird extra blob that's not connected to the front for a snug fit. The base circumference - from forehead hairline around the back hairline is 22 inches - and the crown circumference is 20 inches. Basically, I'm trying to knit varying widths in the round so that I don't have to join it. I thought I could add my increases into the middle of the work so that the first (base) and last (crown) few rows are circular joined. Something like every 2 rows, add in a straight back and forth and find some way to hide any holes from binding off and casting back on.
If anyone has experience with this kind of pattern, I'd love to hear your solution. If I can't figure it out, I'll just have to knit it flat and join it (sigh).