Understood max1 thanks for the reply I read with much interest.
I suspected all along that those times were to be adhered to as best as possible. Am happy with my 0 to .2 at a maximum tolerance.
le Pingouin, if programmed from before top of descent it just stays steep until a deceleration segment (simplistically put). Normally that happens at 10,000 and its shallower thereafter. If the cancel speed + max speed happens after top descent generally the profile says your says something like 4560ft low and the power comes right up till it intercepts profile and then dives at idle. Either way certain ports have airspace that make the workload go ballistic should the crew opt to take the max speed below 10. Personally I've learned which ones do and don't and limit it accordingly.
Feel free to tell more. Its interesting to me. Gives me and others a bit more of a picture.