Would 1:7 twist be ok for 6xc? I'm planning on shooting 105s and 108s, may be 115s later on. Looking into getting a pre-fit barrel. They have available (in stock) 1:7 twist. I was told that for 6xc it would be fine. Reason I'm asking is I have a 6xc w/ 1:7.5 twist that shoots like a laser. So that I was wondering if it would be worth the wait or just get the 1:7