You must have it down to a routine NK, but it was quite a learning curve for me ( though nowhere near like you, who had to come up with it). My next one will be much easier and better than this one.
Regards the kill button placement, I was considering that hole only to remember it's for the vacuum tube from the decomp valve. So you just blank it of at both ends and not bother with it?

Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!