Slightly off topic, but my main gripe on connection times is the MCT between Wigan Wallgate and Wigan North Western which means that a connection achievable by a normal able-bodied person from an arrival at the former to a departure at the latter, e.g. arrive WGW (from Southport) at 12.03, depart WGN 12.13 is not allowed. (MCT is 11 minutes) Instead to catch the 12.13 service to London, it is necessary to arrive at WGW at 11.35 and wait over 30 minutes.
Today the 12.03 arrival was 2 minutes late, but then again the 12.13 departure was 7 minutes late.
Even with the half-hour wait, this is still a very quick way from Southport to London, just 3h10m, but it could be quicker!