I am happy to answer your questions on specific airports by PM if you need advice. It isn’t relevant to this thread which relates to MAN and where I have never attempted a back to back. Why don’t you risk the offence and see where it gets you?
KARFA - There is good reason why I return to this topic, and I contend that it is absolutely relevant to this thread despite your protestations. Note also that not one poster has raised any objection to our discussing the risks associated with back-to-back transits on here.
To summarise, I asked you about your experience of undertaking back-to-back transits at major airports, which your linked log shows you doing on a regular basis. Given that this is an extremely high-risk practice for most, I thought that you might be able to give forum members some pointers about how you make this work, but - for whatever reason - you have evaded answering, except to imply that it is no big deal and not brave to attempt.
Readers on here are probably exclusively aviation enthusiasts. We're under no obligation to answer any question, but I do think that we have a responsibility to avoid leaving a misleading impression which may prove detrimental to another forum member. Your flying log shows you to be an experienced frequent flyer. But ... so am I. And based upon my own experience, I would strongly urge avoiding bookings which involve returning to origin airport on the same aircraft as the outbound flight, where a standard one hour turnaround (or less) applies. This would generally work on a small commuter aircraft to a remote island or small-town airport (tell the crew you're reboarding for the return), but on Airbus / Boeing types at major airports this invites trouble. Allowing ten minutes for deplaning, and presuming boarding commences at twenty minutes before pushback, you have around thirty minutes to exit through arrivals (and border if international), sprint to departures, negotiate outbound security and leg it back to the departure gate. Athleticism isn't sufficient, you need to be lucky too. Because if you hit the back of even a moderate queue, you're stuffed. You miss your flight. And for most regular passengers, this will be a significant risk. There are still afew airports where deplaning passengers mingle with departing passengers (meaning you can stay near the gate), but relatively few in Europe these days (for non-schengen UK-originating pax), and none of size in the UK.
If anyone here is tempted to emulate your back-to-back style itineraries (because you're giving the impression that they're a doddle), my advice is
DON'T TRY IT. You will soon be caught out, and probably sooner rather than later. I've flown through 464 different airports ... I'm no rookie at this stuff. And I've actually made many quick turnarounds ... but only with contingency in place (standby pass, so no financial-loss implications / delayed flight leaving short interline time / airline responsible for getting you on the next departure etc.). Some flights I have made, some I have missed. But I've never put myself in the position of being stranded or having to buy myself a new ticket at the expensive on-the-day fare. For you, cost of airfare appears to be inconsequential. For others here, it very much will be.
Now, I also said that arriving and leaving on the same aircraft on a typical one hour turnaround would represent a major challenge for
most people. But not for all. There is a group to whom none of the above applies. Those associated with the airline. Those who have no obligation to leave the aircraft and the gate area. Taking the example of a British Airways cabin attendant, their duty flying roster would include back-to-back sequences which very closely resemble your own. Such a person would never miss the turnaround departure, because they stay with the aircraft. They only exit through arrivals formalities at the end of their (multi-sector) duty, and even then - if uniformed airline staff - they exit through a discrete express channel unavailable to regular fare-paying passengers. Of course, short-haul crew members such as these will ratchet up far more flights than passages through airport security and immigration. And they will rarely be required to join the potentially lengthy queues which their passengers routinely negotiate. Perhaps such people would not be best placed to critique mainstream security procedures at the airports served by their flights. And, of course, they wouldn't consider it stressful or brave to make a departure on a quick turnaround. But it's very important that such a person should not leave the impression that it is similarly easy for a regular punter to attempt, based upon what they read on a forum such as this.
If [forum members] you're not affiliated with an airline in some way which allows you to remain with the aircraft during turnaround, don't try something like this. You might get away with a couple of times if you're lucky and fit, but you'll soon come unstuck.