Although not with "total rebedding"--yet--I do have some experience with this and the principles/techniques for re-bedding one penetration can be applied to nearly all the rest. My recommendation would be to check out the step-by-step information on:
Compass Marine "How To" Articles Photo Gallery by Compass Marine at pbase.com
I believe these are good, very sound techniques and have already used them myself on a smaller scale and with great success/confidence (thus far). I bought the butyl tape and intend--when things get a little cooler down where I live--to remove and re-bed each of my stanchions, replacing the old/cracked stamped one-piece gaskets that Pearson apparently chose to use for the 31-2's with the butyl rubber, as shown on the "pbase" site. Apparently, the stanchion bases are the biggest/most common culprits for water intrusion on our model.