Need some advice...

A couple of weeks ago, the Accutrigger on my 110 BA would not release the sear. Savage Customer Service said that we had a bad trigger assembly and to have our gunsmith request a new one. Well, guess what?? After shooting 8 rounds of HSM 300 gr ammo today, the new trigger assembly also failed in the same fashion. It will only operate if the chamber is empty...

Which trigger would be a good replacement?? SSS or Timney