When I talk multi-classing, I'm also counting "Dual Classing" as per the AD&D rules under that general heading.
Armor restrictions, weapon restrictions, class combination restrictions, hit point calculations and the like - can all differ slightly depending on the system of choice.
I'm not all that happy with the AD&D method, as it seems too restrictive in some ways (class combinations until UA made that insane) and HP calculations (I run with "fractional HP" when my multiclass party members roll HP).
Forget dual classing in AD&D - the stats required are extremely high, especially if you are coming from or going to a sub class.
So, what's your favorite method? Do you go BTB (anybook ;) or do you have your own set of house rules?
I don't think this is going to come up in Crypts & Things, because EVERYONE is effectively multiclassed as a Rogue (even the Thieves), but ya never know...
GURPS DF Session 150, Cold Fens 9 - *Yesterday was a milestone - session 150 of my temporary, let's play until we get a real game going, something to do on weekends game of DF.* *Date:* April ...
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