Underlever
Your post best summarises what I thought at the time. Basically you do not get too many chances at something like this.

Igorrock
At this stage I will leave the butt trap alone. Not sure about the future.

Caprivi & Gryphon
Thanks for the advice and updates here. It is nice to know some other load parameters. I have heard from another source that Roger Keagle (a knifemaker I believe) may also have known Jeff.
Yes my mistake I did mean groove size.

Rick