[JohnS]

Nick,
I had the 120's on my 20 MA. My thought is this
and nothing more. If you need lift, and you go toooooo small, what is the purpose? If you go a bit bigger, and you really didn't need it, what is the difference? None that I can see other then you will plane quicker with the bigger tabs than you will with the smaller ones and you will not plane quick enough if the tabs are undersize. In a case such as this, a little bigger will never hurt and the cost difference is almost nill.

Just my opinion. Why not call Bennett and ask them? They are very knowledgable and have always been extremely helpful when I have called them on anything.

John