I must say that reading "they" and "standard operating procedure" together in a post regarding the follow-up of remission makes me extremely wary. "Their" doubt and scepticism makes me highly suspicious; it is almost as if they WANT to find tumours!
I sincerely hope that you receive a second, and hopefully final, all-clear. Judging from your posts you have changed your lifestyle completely and fought the dis-ease head-on. You certainly deserve the all-clear, so here's hoping...