Just caught up on iplayer. I also thought the crab round was very difficult although I have just googled how to cook that dish and it's actually quite easy once you have a recipe! I'm going to try it next weekend 
I was also a little disturbed by the comments Tim made about feeling ashamed. It is only cooking. Yes good food is lovely, yes he felt he let himself down, but to feel ashamed is wrong. 
Can I just ask why there are so many anti-Sophie comments? I think she seems fine. Just a normal 40 something, pleasant, a nice cook and enthusiastic. The food she cooks is the kind of stuff I would happily cook for my friends and family (though it would take me twice as long!) There have been some pretty mean posts about her. Am I missing something?
Oh and samphire is lovely 