I'm surprised you can stand dissolving them in your mouth OP, with the bitter taste and all. If you do that, I guess a miniscule amount will make it through those membranes under your tongue, but the majority will go down the back of your throat. You may find the effects kick in slightly faster, as the pill is already dissolved as it enters the stomach, but it won't improve the intensity of effects ie BA. In the past I've found crunching up the pills and washing it down with hot coffee or other drinks can make the effects kick in a lot sooner than by swallowing them whole.
BTW does a pill have to be in a sublingual formulation for it to work that way, or can it be done with any pill?