technique

Hi all.. newbie mechanic here. Please inform me on how to properly use Seafoam on my bike and provide step by step procedures on how to "shotgun" and "peashoot", both of which are new terms in my bike maintenance vocabulary... thanks!!!!!:confused2:

http://www.youtube.com/watch?v=-cM9S2AzU28

I just got a set of drag bars that came with new ProGrips. However, I'd prefer to keep the original grips that were on my stock bars. Does anyone know a tip or trick to remove the left hand grip from the stock bars so it can be reused on the new drag bars? Thanks for the help.