I just ordered a hellfire brake for my 6gt. I have a sico omega which I added a 6.5mm ti endcap to. I was going to order the ti supressor addapter hoping that a lighter can would offer less poi shift, as I dont care about the weight it would add to the rifle. But after reading about some people having them carbon lock, or loosen up, I am wondering if stainless would be a better bet rather than dissimilar metals. What is my best bet?