Go to RimfireCentral.com and see what many people say. I have used their services on a 10-22 trigger assembly and while it is not a Kidd trigger, it was a big improvement.
They have great service. I would not hesitate to to use them again.
They have done 6 for me and all were a great improvement.
I have them set the break for 2.5# or what they call the sweet spot.
Also I elected for the cheapest version $38.
Rimfire Central is the one stop place when it comes to info/tips and such on/about a 10/22. So much there that I find it overwhelming when trying to make a decision on what and how to do !!