M46 proper engage/disengage of OD!

[chad1966]

Ok this is my first Volvo as you may know and my first experience driving a car with a elec OD. When I shift into OD should I be pushing in the clutch like a standard 5th gear, shift while letting off the gas pedal, or just keep accelerating and let it shift. Now on down shifting has me baffled. Should I be clicking OD off before down shifting at all? While on the freeway today I was in OD and hit traffic, I slowed down enough to grab third and while not realizing that OD had not dis-engaged because I had to pay attention to the vehicles in front of me. I had to hit the button again and then it dis engaged. Am I just over thinking this or is there a proper in/out procedure for OD. Thanks.....