Well I just got done installing a Timney on my 03-A3 Sporter.
Lots of moding to make it fit and function.
First I had to file done the top of the trigger housing where it mates to the action
to get the pin hole to line up.
Then I had to remove some metal where the sear contacts the bolt, of the bolt not the sear.
Then reajust the overtravel so the bolt would not drag when fired.
Then open up the trigger housing slot, then trim the bottom of the trigger to clear the trigger
gaurd.
When all said and done the trigger is 2.75 lb., it was 4.75 lb. with a ton of creep and overtravel.
Tiny bit of creep, real tiny but I notice it. A little to much overtravel but I will have to get use to it. Overall a much nicer trigger, but not what I was hoping for.
Next my non-Sporter is getting a Huber trigger, I read they are very nice.