I was only roughly conceptual, as I didn't bother to fish my horn out of the shed to measure valves, and notice that I drew the clear through path valve ports at the wrong locations...but still the look appealed to me. Recall I started this by having a spare Conn Vocabell bell...and imagined some extreme expression of the peashooter form as being the stylization realized.
Your valve block design would be even better. I have since considered a two-stage third valve paddle that has a decent at the normal depressed location, then depress a tad harder/further to push out the third slide mechanically.
I do not really like triggers. I find them disruptive.
I wish to know more of your work!
I would be nice to reference my humble input if you produce it...
My name, for the record...Gordon Furr