Well I did this yesterday and it worked great. I was worried about foaming, but I really didn't get any. The transferring process took a lot longer than I thought it wood though. I think it took around 15 minutes to push from one keg to another, but I was going at around 2 psi to avoid foaming. I had to look inside of the keg to see what was happening, so there may have been a bit of oxygen that got in, but it's all good. The beer tastes great (BM's Cream of 3 Crops) and I think the family is going to love it at the beach!
Also a bit Off topic, but yoop with your portable keg Co2 charger, have you ever used the Crossman Co2 cartridges from WalMart? I'm a bit worried that they have some sort of oil in them b/c I could smell a bit when I sprayed some Co2 on my hand. I know they say they're not Food Grade, but do you really think this is a big problem?
Or, do you think that oil smell could be b/c my Portable Keg Co2 Charger is new and that's some sort of lube from the manufacturing process?
Thanks for all the great info guys and gals.