Thanks Danny, I've been testing quite frequently over the last few days and I've found that I am getting the peaks and troughs to be more controlled
I've also been taking advantage of the gym in the hotel, which seems to have particularly affected the peaks (although I have to watch my BG straight after the session to avoid dropping a little too far before eating a meal).
Thanks for the pointers and the masses of useful info on the site. It's been really helpful.
Rgds,
Guy