satisfying (02h) % 4 = 1 may require slowing down for a few frames, so the triple lane switch becomes less practical if you need to slow down for many frames.
watching (26h), single lane switches on top and bottom can take at minimum 9 frames, while single lane switches on the left and right can take 13. the first half of double lane switches are also this long. watching address 26 is useful, because you can count the length of the lane switch by the number of frames. also, you can usually predict the length of the lane switch by looking at (02h). when (02h) % 4 = 3, the 