I pretty much agreed with ZAN on point 1 and 2, an auto will always be an auto, no matter how you mod it.
Initially i thought that the MITSU auto gearbox was suppose to be of better quality, but after that gearbox also spoil!! i got no choice but to install one of those ATF cooler with the hope that it really works and and keep the auto Trans life longer.
Before this i also drove a original wira 1.6 auto for 5 years and the gearbox also gave me problem even with routine service and maintenance. is like something wrong with the original design of the 1.6 Auto with PROTON and MITSU.