I think when u dissect the position that you will eventually end up into expiration, you will end up with 2 condors right? Essentially you are going long 1 condor and legging into the 2nd condor into weakness vs. my approach of legging into the 2nd condor into strength. so why not just have a sunk cost of buying 2x the outer wings, use some form of tech analysis to sell the mids...then use a time stop to stop bleeding on the wings should nothing happen. Using your example, start w/ Long 285/315 strangle, then use the upspikes and down spikes to sell 1-2 calls into strength and sell 1-2 puts into weakness. You then are in a position to hit a grand slam homerun on up gaps! which pays for the 3 other times when you get time stopped.... is'nt options great ! .. so many things to do.. 
