I have stoned sears several times. I have never found the need to stone a factory sear unless there was wear or damage. You do not need to stone a sear for the SAV-1, SAV-2, SSS or the Jard.
No Experience with the Jard.
Best triggers in my experience:
1. SSS
2. SAV-2
3. Shimmed Timney
If you need an in the trigger safety:
1. Accutrigger Target Red Blade
2. Accutrigger Varmint
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