Some things that need answering...
Ok.. the scene with the bank. You had the bad guys and the good guys counting along before the big boom. Just wondering a couple things.
a) how did everyone know when to start counting?
b) how did thye know to even count in the first place?
Also, about the so-called partnership between Clint and Van Cleef. How did Van Cleef know to go the oposite direction that he told Clint to take Indio? Lucky guess if you aske me. And since he was double crossed, why not get even with him, hmm?
Yes these are indeed questions that scream out for an answer. 
suspenstion of disbelief ? dave i think i follow you on your script.