Actually a good question. I'm not a 'smith but I prefer as few pieces as necessary so I'd think about reshaping parts for a proper engagement. But have tricked out Mauser triggers as described by Dunlap. So long as it's safe and reliable and can't disassemble itself to cause an unsafe condition.
I would think that the Modification would be safe as it is just attached to the outside of the hammer and below the full cock notch to limit sear engagement,I would think that the worse thing that could happen is that if it fell off I would be right back where I started from with a trigger that has a little creep to it.
