In case you aren't aware - sport weight yarn makes nice, cushy socks. My DD loves hers! It knits up somewhat faster too. Size 2 or 3 needles work well with it. Right now I'm working with sz 0 and to finish the ribbing and may go down to smaller dpn to finish at the top. I was crazy enough to decide I have to have knee hi sox ribbed from the ankle up. Next time they'll be stockinette.
Increasing in rib is interesting and I think everyone should mess around with it at least once. This pair of sox may be my last adventure into the land of increasing in rib.
DD's sox were such a hit I had to order more sport weight yarn to make them for SIL, GD, and GS. Oh yeah, my DS got a pair in sport weight too and hopes to get more. I hopefully will get some made for moi.