Sorry, I appear to have unintensionally hi-jacked this thread. Please accept my apology.

That's a good idea Louis.
Churning it over in my head, I was set to dismantle the trigger and have one copied (Make a duplicate) in our engineering workshop (CNC)
It's easy to disassemble and a straightforward machining project.
Might well do both things to resolve the issue.

If it were possible, I'd like to fit double set triggers to my takedown M1903, but I don't think it's possible to make the conversion.
Does anyone know otherwise?
Cheers, d.