Andy, i have been using that TCS aluminum drum with steel liner(full metal jacket) for 3 seasons now without issue. I bought all my components for 727specialists. Years back i inquired about it on here and know one said good or bad about it, so i decided to give it a try. lighter than the stock and billet drum. I have nothing red inside my tranny except the fluid, its just not needed street/strip. My clutches look like stock clutches and i believe my bands are kevlar. When i recently removed the trans pan i couldn't believe how clean it was. Never seen one even close to this clean when i used the alto reds. I use billet servos and a cope rmvb. Give the guy over at 727specialist a call, he will hook you up.