Each subsequent strip is installed in the same manner as the second strip, except that most will require some planing to make a tight joint. The angle of the edge needs to change along the length of the strip. This is called a rolling bevel. It is quite easy and fast to do using a block plane once you get the hang of it. I loosely install the strip I am fitting and hold it in place with some c-shaped pieces of plywood clamped to some stations. Then I check the fit along the length and, if required, bow the strip slightly away from the stations and plane as required. The idea is to leave the outside edge intact and only plane off the inside corner. With practice you can get quite good at estimating the angle required and only a small amount of trial and error is required.