FJ, it's intarsia knitting, stranded knitting (can also be referred to as fair-isle although technically different). You knit from a chart (because yes, it's upside down). One big thing to remember though is to twist the yarns around each other as you change colours or you end up with holes. Doesn't work for circular knitting, only flat knitting because you have to carry the other colour around with you on circ knitting and that takes away from the stretch of the knitting. On flat knit it's okay because you go back and forward across the rows to pick it up on the same side you finished on.
I would get an extra set of needles for two reasons.
First being that's it's damn tricky putting stitches onto stitch holders or straight needles to hold them when you get to the crotch bit. You would need three per leg (plus the ones that hold the crotch till you graft it...and you'd have needles sticking out all over the place while you try to knit. I'm speaking from personal experience here too
Also if you get one circ then if you get 40cm's they are too long to do the legs and you risk stretching the knitting too far or 30cm's then it get's a bit crowded on the needle for a larger size and you can drop stitches easier.
I started off getting 1x40cm and 1x30cm but then got another 30cm plus DPN's to make it easier on myself. It seems a bit I suppose but I also knit beanies with them too.
Yeah thats true actually. I have 2 circs, & 2 sets of DPN plus 3 other sets of straight needles. I use booby pins are stitch holders but you have to be careful as its easiy to drop sitches if your not watching.
I like to do the legs on the circs over the DPN as I worry about the gap between sitches/needles with the DPN.
I can't remember what length my circs are. 30 I think....
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