I have, currently, 5 Greg Black 1G .312 #2 mouthpieces in my possession.

2 regular weight

1 star weight

1 lightweight

1 New York blank

Weight on my nice digital kitchen scale-

Regular weight

Mine: 141g

Borrowed: 138g

Star weight

138g

Lightweight

136g

New York

112g

Stock GB 1 1/8G in regular weight:

142g- heavier because there's less missing!

So, oddly enough, the difference between the two regular weight mouthpieces is as much as the difference between regular and light.

Star weight doesn't seem to be different at all... is that a backbore difference? The blank is definitely just a little different, almost a Schilke shape to the outside of the cup.

Note that I haven't played any of these except the one I own, which is one that I picked from a set of 3. More on how they play tomorrow...

Pictured in order of weight.

Just as an aside:

Laskey 95D

124g

Laskey 93D (2)

127g

126g

Giddings Bob Sanders

150g

Giddings NYS

183g