I.E for outdated kodak tmx 100 readyload?

i would like to know if anyone shoot outdated kodak tmx 100 and wich index exposition uses . i think i have to use betwen 50 and 64 due the film age 2004 .
advices welcome.

I have been using an EI of 50 for my 1998 dated TMX - 135 roll film though, and it was frozen for much of its life.

I got a few rolls of TMX dated 2004, with unknown storage. The first one, exposed at 100 and developed in Xtol looked fine, the second, a touch underexposed. So I'd probably do 80 or 64. The TMY I got from the same source and the same date had lost a lot more speed.

I have a ten year expired box of tmax 100. EI 50 works fine.