I have just finished knitting a quick sweater on 12mm straight needles. The wool is "collinette" point 5 and looks like its been knitted directly off the sheep. Or picked off the fence of a sheep field. It's sort of very thin in places and bulky in other places. Is it ok to block this kind of wool with steam or a damp towel? I have never blocked knitting before. The other sweater I just completed was blocked and sewn up by a lady who can do this sort of thing. The other thing is, I haven't knitted the neck yet and the pattern says to make up sweater and complete by circular needles for the neck. Could I use three or four double pointed needles instead of the circular needle? Thanks.