Ive played around with decompiled binaries for the trans & there is lots of options that both efilive/hpt/tunercat don't show. Understandable because theres so many god dam parameters!

anyway ive found depending on os there is always a speed activation cut limit & reactivate which is also linked to 6th gear. similar to the engine rpm cut/reenable u would see in an ecu. Some OS's have a override switch to turn it on/off.