I agree with Mr G.
Unless I missed it somewhere, after reading my
current CoS, there is nothing that states that should a new CoS be offered, I
must sign the new one, should I elect to remain based in HKG or if I am currently on a base.
To be 'highly advised' to sign, by PW or NR is against Vol. 1, 4-2-4. And since NR has his signature on the front page (well close enough), it is a 'legally bound agreement' according to my solicitor 'advisors'.