The only time I go into overdrive in second is if I am driving short stretches below 40 mph, such as a short stretch in town between the highway into and the highway out of town or on the mile up hill on the country lane going to the house. On the highway I never go into OD until I hit cruising speed in third. If I'm doing sustained driving in the city or out cruising county roads I disable OD with the cable.
If you are in second OD there is no need to come out of OD to go to third.
