[nsp] Experience with code to fix the ios bug on cat6k native?

[Steve Francis]

Anyone have any recommendations (either for or against) the codes for a 
cat6k msfc2/supII in native?

Wondering whether to go 12.1.19E1, or 12.1.13E9

(ACLs are in place, so I have some breathing room.)
Currently we're mostly at 12.1.13E5, which has been working fine for us, 
despite now having a software advisory on it...
THanks