If your trying to shorten the flower time your going to lose a lot. Your gonna have less, and worse. Just wait it out. Like the other guy said why introduce the potential for mold? Fungus gnats... and did I mention less yield?
This just sounds like all downside to me.. during the last 2 weeks is when all the real weight gets put on, it may look like they swelled up, but they are still airy.