Any tricks to resuspend bacterial pellets quickly? - (Mar/14/2013 )

I am resuspending bacterial pellets (from 25ml cultures) after they've been frozen at -80C. Sometimes I have up to 40 samples and it takes a long time to get each of them thoroughly resuspended. I'm resuspending in 1.2ml with a P1000. Does any one have any tricks/suggestions of how to do it faster?

vortex.