Sorry to you too old Chum, because I think you have taken my post entirely out of context.
Im fully aware I dont know whats going on in the cab, nor did I say in any part of my post that I did. If you'd like I shall recap the points I was trying to make in my post... unless of course you know the line in question?

some drivers are heavy on the power; some are not.

some drivers apply power at Bamber Bridge well before the end of the 45mph limit and the linespeed increases to 60mph then 70mph. Some dont. Some wait till well after the 60mph board.

one driver got caught out at Carleton Crossing at got pinched by the TPWS. The standing time of 2 mins and the heavy brake application gave that one away.

jointed track gives a good indication of whether you are travelling faster than "normal" or slower than "normal". A Perkins powered 158 very rarely tops out of Pleasington Bank any faster than, I would hesistate to guess at 55mph. The reason for that guess is because its still revving at full power and hasnt dropped down to lower engine revs once whatever it is in the transmission does "its thing". Most Cummins units dont and are already running at lower engine revs.
And finally, if your blood pressure has lowered and you have taken your head out of your posterior for one moment, I will tell you this:
I dont profess to know ANYTHING about the railways or its operations, driving techniques or anthing else. Nor did I ever intend to. My background is engineering and my interests lay firmly with the permenant way aspect, not trains.
BUT: I travel on the line I do 46 weeks a year. Every driver IS different and they control their train differently. Sometimes things out of the ordinary do happen and I can probably second-guess to some extent what is going on.
Do NOT presume that I am an enthusiast who likes to play driver. I dont. My interest is purely engineering. But as a PASSENGER, I notice what is going on and sometimes I like to comment on it, just to make observational comparison.
So please do not patronise me or my comments. I observe, compare and deduct what is going on from my cozy seat as I gaze out of the window.
I have enormous respect for railway folk in general, particularly those on here such as Trog, OT, OL Leigh and the other guys (sorry for not namedropping the others) who not only post sensible discussions, but also give an almost educational insight in to the operational aspects of the railway. But your attitude to my post smells of pomposity, which I will admit, I also tend to do when people try to tell me MY job (and I am sure many on here have plenty of things to say about traffic lights

).
So yeah, sorry TDK for just putting down my observations. However they are also valid observations and non critical of any driver.
Chill ya beans, luv.