Finally got my Sterlingworth done but have questions

[whisperbow]

I bought this 16 ga 2yrs. but it has taken that much time due to snags to get it finished. My questions:
1. Stupidly, I only shot from the right barrel then took it to my stock man. When I got it back I loaded 2 shells and it doubled on me because the sear for the back trigger wouldn't hold. I finally found a sear and it took a while to get it installed because my gunsmith was ill. Now that it is installed everything works but the front trigger has a harder trigger pull then the back trigger with the new sear?
2. Also, My stock man pointed out the side movement of the triggers is around 3/32". Should I install new triggers?