Basic Set Unarmed Combat boxing questions

[Kromm]

Just to be clear: There is no "off" hand in unarmed combat in GURPS. The Basic Set failed to make this as clear as it could have, hinting at it in a few skill descriptions but not generalizing it. Martial Arts makes it far clearer. Claiming that there is an "off" hand for the purposes of unarmed combat is fine as a house rule, but definitely not what the entire body of rules published to date supports.