In reply to Mr. Lee:
dunno about the light one but have found the regular one makes no real difference to the swing of a nomic (only have a hammer on one tool and dont notice any difference worth worrying about).
that said, i bashed in dozens of pegs/spectres with no hammer at all. dinged up the alu head a bit but not the end of the world (mind you old picks had a raised bit of steel that helped a little).
get whatever. maybe see if dane has any at coldthistle if you have the time to wait for shipping.