Bill,
We caught several LMB at our farm this past weekend. Here is the data I collected:

7 1/2 inch LMB 1 1/4 gape
7 1/4 inch LMB 1 inch gape
9 1/4 inch LMB 5.5 oz 1 1/2 inch gape
17.5 inch LMB 3LB 2oz 3.125 inch gape
17.75 inch LMB 3lb 7oz 3.5 inch gape
18 inch LMB 3lb 11 oz 3.5 inch gape

The first three are from last years' spawn, the other three are two or three years old.

Brian

The one thing is the one thing
A dry fly catches no fish
Try not to be THAT 10%