Call Webco and order your ICS POH. You are a member aren't you?
You will find there more info than you think.
Well, after quite a long wait, my ICS POH arrived and I am really pleased I got it. Not so much because it actually has much more information in it that the 'original', but because it is so much better laid out and doesn't have that 'home made' (lots of different photocopies of from different decades all bound together in a silly binder with a CAA stamp on it) feel to it that the 'official' one has.
Once again, thanks to all those who've answered on this thread.