As others have said, alone, I just kinda mozy... sometimes I go 20-30 miles, sometimes 15.
I wake early, usually around dawn, and take my time packing and with breakfast, fixing anything that needs it, setting things up for the day and supper and camp at night. I leave a couple hours later. I hike till about 1500 or so, give or take a couple hours and take my pack off for 15 minutes and eat lunch. I hike till about 1900 or so, and set up camp. This works out to be about 12-13 hours in summer, closer to 8 hours in spring and fall.
With my family, it was more do what you can, ignore the first one or two "Can we stop now?" queries. I tried to maintain an hour hike, 5 minutes rest for the kids. With the wife and I, I usually go about 2 hours and 5 minutes, 2 hours, 5 minutes, 2 hours and 15 minutes, 2 hours and 5 minutes, 2 hours or whatever to camp. I tried to set up a shedule with the scouts, but this really didn't work that well. One or the other would always be saying they needed something out of the pack...at least a 3 minute break. With other hikers, I go with whatever they want to do. I can keep up, generally.
Rearranging your pack is a lot of hastle. I will do it if I am on a LONG down hill. But I don't usually bother. I pack in revers order of the way it will be needed. Tarp is in the side pouches, low. Water is in the side pouch, low. Soo, I guess all the weigh, heavy items, are low. I vary the way I use my staff by twisting the lashings.