Just an update... still running great. I changed the transmission oil yesterday with mostly AAP 75w90 synthetic GL5 and a bit of Supertech 80w90 GL5. The reason for the combo is the little bit of oil lost in the whole pumping process...
Anyway the transmission is GL5 compatible, and the ride to work today showed no problems with shifting, etc. Hard to say if anything is smoother, there may be a very slight improvement with the syncros, but there wasnt really any problem to start with.
Carry on..