Forum:Priority vs Counter Trap Chain

If my opponent has 2 X-Saber monsters, one tuner and one non-tuner, and Special Summons Faultroll, and I respond with Torrential Tribute, and he negates it with Solemn Judgment, and the Chain resolves, am I allowed to activate Compulsory Evacuation Device or Book of Moon, taking one tuner away, before he has the chance to attempt to Synchro, or can he say that because he is the turn player and a Chain ending with a Counter Trap just resolved, he can Synchro before I have the chance to activate CED/ Book? Say also that he wanted to activate a Trap card after the chain with a Counter Trap resolved, just as I want to activate CED/ Book straight after the Chain resolves; who gets to start the Chain? 82.35.91.113 (talk) 15:13, July 3, 2011 (UTC)