Absolutely, Mel - I'm working on the theory that if i put all this effort in I want to be able to wear the thing, even if it means ripping back and starting something again so if you're not certain about the sleeves even after blocking, CosmicCarrot, it might be worth it?
(Remind me of that if i'm whinging later on that something isn't quite right, will you?
Here's a progress shot of my Cactus Flower:
I've got the body done, as you can see, and have made a start on sleeve number one. My mum's actually due a visit for the first time since I started making this this afternoon - having knit all her life, I think she's more excited that I'm knitting something to wear than I am, bless her!