I don’t understand the example you gave. If weather adjustment is 100%, that does not change the program run time at all — program run time is multiplied by the weather adjustment percentage number. So if it’s 100%, then a 10-minute long program is still 10-minute long. That doesn’t get reduced to 5-minute.Did you actually observe it or are you just guessing it based on your understanding?
Also, what you meant by “additional start times being used to distribute resource use for long runs” is the so called “cycle and soak” — it’s not at all what weather adjustment is doing. You can use additional start times to split, say, an original 1 hour long program to, say, 15 minutes long but repeating 4 times. This has nothing to do with weather adjustment.