Thank you for the reply, I shall tell the dealeer to do that when I bring the car in next week. I've been babying it lately and the misfire does not occur but power is significantly down.

Also, there is this weird 'stepping' increase in RPM when I press on the accelerator fully, i.e., instead of one continous rush or pull from idle, it sort of races to a plateau, pauses there for a quarter of a second or so, goes to another plateau, pauses for a while etc until it hits redline. about 4-5 times before shifting to 2nd. Weird...

I bought a new MAS as per the dealer, no change whatsoever...