After spending a few days and many rounds of ammo testing, I just published my review of the Swampfox 10/22 trigger here at my blog: https://1022companion.wordpress.com/2015/08/30/swampfox-trigger-review/

Swampfox isn't the best-known of the 10/22 trigger upgrade specialists, but the work on this one is outstanding. I find it a great value compared to any drop-in hammer/sear kit from the big names, as the trigger pull is better than my VQ hammer provided and the trigger return spring upgrade is definitely the special sauce.