The first class section on the Manchester to Huddersfield is well utilised compared to the Leeds - Huddersfield stopper as most journey planners will send you on the stopping service due it’s faster journey time to connect to the Saltburn at Huddersfield with both trains leaving at 58’ past the hour. So if you’re travelling to York from Piccadilly on a flexible ticket, you’ll be told to change to Huddersfield rather than stay on the Saltburn. It’s well utilised for passengers travelling to Newcastle, Hull, Leeds and York.
The Leeds to Huddersfield stopper generally only finds custom with passengers connecting to LNER London services on the whole with advance singles, however these will all be replaced by long distance Manchester to Hull services
The Manchester-Huddersfield section is still being run like this, as part of the Hull-Piccadilly service.
This hasn’t been the case since Dec 22’.
The Manchester to Huddersfield all stations is covered by the stopper and peak time alternating Newcastle/Scarborough trains
From Dec 23’ the stopper continues as a separate entity with peak time trains covered by express services (Saltburn?) and the Manchester to Hull covering the Leeds to Huddersfield.
Never found that a massive problem on 185s. You do get people putting bags on seats but it's just because they're too lazy to put them up (Desiro overheads are huge) or on the racks that do exist throughout the train.
It’s a massive problem for the Airport services Bletchleyite. The 1544 from the Airport is one of the worst offenders for it as it is well timed to meet with quite a few long-haul services.
Now I already know your option of TPE serving the airport and I strongly disagree with it, but Luggage is a massive problem, I encountered a near 7 minute delay at Piccadilly platform 14 on a Saltburn train a few months back because I left the airport full and standing, and there was physically no space for large suitcases, creating extremely narrow passages to board/alight