There is too much of confusion about IR and other levels. I will try to clarify. There are two types of decision points. Fixed and Dynamic. Fixed levels are past levels which will not change like PDL,PDC,PDH,DO etc.. Big round numbers are also fixed levels.Other current day levels are dynamic which will be revealed by the on going market action.
We trade the market as if it is in a range all the time.But many times we may need to take action before knowing the exact structure. In other words we have to trade the provisional or probable ranges or stand out. What we do is to assume a provisional range and take action.Later we may need to change these levels slightly. Go through today's price action
We will never know for sure where the orders are . So we start with provisional levels and modify it later. First we identify the IR. We ignore the lower tail and mark the round number as IRL. High of the pink box is IRH. If we want to go long above IRH then there is no way but to long above this box. It is a BOF. Later the boundaries get extended to the green box.. Now there is no point in projecting the pink box to future. New levels are green box.extremes.
Likewise the purple box levels get modified to the blue box levels. There is no point in continuing with the old levels when dealing with future price action. It is not possible for me to mark all the modifications on the chart. Most of the time the final levels are marked on the chart.
Decision points are not exact levels but minor zones. Do not mark it with a drawing pen. Mark with a highlight pen. Millions of people are executing countless strategies at the same time in markets. Expect some overshoot and overlap. Please do read my earlier article Brackets and Envelops
Hope I could convey what I wanted to say without confusing you. Otherwise let me know.