I had se cable stapled all over the side of my house up to a weather head under the peak of a gable with a 30" eave. The drop was lagged onto this eave then down to the weather head. I installed all the new equipment close to where my panel is located in the basement (about 10~12 feet to the west) so I did not have to disturb any any of the old wiring until switch over day.
SNORT! I did. The puco guys never even went inside. They had me go in and yank the meter ( it was in the basement too, new one outside per their specs ) I had already removed the old meter box and panel from the mounting board and had them tied up out of the way so I could go ahead and mount/wire the new panel. New meter box was outside under the mast. All I had to do after they moved the drop was move 12 circuits from the panel to the new and we were back in business. Power interuption was about 30 minutes.