Couldn’t agree more about not making reservations less than 5 hours and our October trip provided support for this. First, the plane that was to take us Orlando was delayed 1.5hrs at its originating airport due to weather. When it arrived, we were then delayed a further 45minutes while they fixed a minor problem with the toilets. So we arrived 2hrs 15minutes late at MCO only to have another 20minute wait on the ground awaiting a gate to become free. Our 3pm arrival was now 5:35pm and we didn’t get to the hotel until a little after 7:00pm. We couldn’t get to MK in time to use the FPS we made so lost them for the day.You could make it, but I would not want the stress. In order to manage this when flying in and using DME everything needs to proceed without any glitches. One delay and it's over.
I never make an ADR less than 5 hours after our arrival time. Most people agree that 3 hours is the minimum time to have as a buffer, but I don't want to start a vacation running to make an appointment.
This is what I'm thinking. There are just too many variables when flying, things that are out of your control.You could make it, but I would not want the stress.