My No.1V did not have the adjustable trigger feature, so I went with a Canjar single set trigger and cured the issue completely.
Hard to find now, but well worth the effort if/when one is found. It gives these neat rifles an entirely new personality.
In the field, it's like shooting one of my rifles with a Jewell.
This is yet another example of the times we live in...."wish they still made these"......