I put the JT steel sprocket on for the TAT, busted the chain as it was adjusted too tight and wore out the counter shaft sprocket. Replaced the chain and CS sprocket still have the steel chain ring which has over 9,000 miles on it and still looks very good. Note the chain was oiled EVERY tank full, about 200 miles. No adjustment problems.
Alloy chains have no use for the TAT and IMHO are junk. Weight savings gained from alloy has very minimal effect on acceleration as the weight is centrally located at the hub and not the rim. Heavy duty tubes have more rotational weight than a steel chain ring.