8.2.2.2 ESP (Inclusive list) What does this mean?

[Andy9]

For rule 8.2.2.2 ESP Permitted Features and Modifications (Inclusive list):

       BB. Swenson style thumb shields and frame mounted thumb shields.

 

To me that sounds like a "*thumb rest [generic]*" and if it was, some what "discreet", un-like an open gun thumb rest, that would fly. 

What do you think?   

 

[ChuckS]

Nope,

ETA: I never saw a frame mounted shield. Perhaps you could work that approach?

[Jim Watson]

I have seen a frame mounted thumb shield but it did not have a thumb rest ledge.