As I said in post #33 the starting seems normal to me IF THERE WERE NO GLOW PLUG ACTION in very warm weather. However as I understand it you think you applied the glow plugs longer before and less than that in this post #48 video. I just don't see much difference in cranking time. I assume you had the engine either COLD or at least not very recently run in both cases (otherwise the comparison would not be valid.) If all that is true then I doubt that the glow plugs were really getting hot at all in either case. The indicators for how long the glow plugs ran (ticking noise interval, whatever your control mechanism is) may very well be SAYING the glow plugs ran X amount of time but maybe they are not really operating at all. If I were you I'd find a way to check and see if the glow plugs are really operating or not.
I'm too lazy to go look thru all 47 prior posts but did you say that when the engine was good and hot and just turned off for a minute or two that it cranked A) about this same amount as in these 2 video examples? OR B) very short or almost NO cranking before starting & much less cranking than these examples?
I’ll see what I can find out about if the glow plugs are actually working or not. It takes maybe a couple less cranks if the engine is already hot to restart.