Is it necessary to get the bix n andy trigger w/ sear insert versus no sear insert for a Bat MB action w/ 6BR. I truly did not know BNA made one with sear insert, I thought there was only 1 trigger w/ no safety, but to my surprise I have 2 choices. Both about the same price $10 difference, so that makes no difference, but just curious as what is preferred by shooters out there if there is a preference or not.