There's a lot of complex reasons for picking certain blade steels, you can't just pick something out of a hat and use it. 52100 is mentioned a lot in this thread but remember its not a steel that is made in the thin stock required for the trailmaster, not in asia anyway. The drop forged series made use of the thick stock, but its not economical to surface grind most of the steel away to make the trailmaster compared to the thin stock alternatives. The truth is most steels that would be suitable for knives aren't produced in suitable thicknesses.