Looking for advice on an upcoming 358 win build. Looking for a carbon fiber barrel manufactuer to make a sendero/varmint contour. I have CF Bartliens, Benchmarks, and BSF tubes that I have had great success with. Bartlien told me no, BSF told me they would think about it, and Benchmark said they would do it in an MTU which is larger than I would like. I see Preferred and X caliber both have this as an option but have zero experience with either, both having mixed reviews online. Thanks!