You know what, I think the heat got to her as it did to some of my grow (others in my grow weren't as badly affected for some reason - genetics, probably)... It's up to you how much more time you should give them... have you taken a look at the trichs yet? If they are cloudy, I would go ahead and chop... if they're still clear, then you'd be rather chopping down something that will not do much for you... and I would give them more time... they may not bulk up any more but the effects you get from the smoke would be improved if you can get the trichs at least to the cloudy stage and the hell with what it looks like!
Your call... and good luck with making the decision!