I read on STTM's website that some people like to chew or dissolve under the tongue their NDT pills in order to speed up absorbtion. I did some research about this and I found that certain medications should not be absorbed too quickly (thyroid meds being one of them). Speeding up their movement through your system can make them less effective supposedly.
I'm all for thinking outside the box on this stuff, but I don't believe in throwing the baby out with the bath water and that there are some medical guidelines that should be followed. It's just hard to know which one's sometimes. But in this case, it makes sense to me to swallow the pills whole, for the reason stated above. Not sure though.