Capacity at termini (whether Leeds, Huddersfield or either Manchester station) isn't why the stoppers are being removed-
a) I didn't think it was, and b) I hadn't realised that the stoppers are being reduced. We have had comments that long trains won't be able to serve places like Newton-le-Willows. I would say that this could be capitalised on by running one of the trains an hour as longer LHCS serving fewer stations.
it's a lack of paths between those places, so omitting stops won't magically mean there's room for the stoppers.
One long limited-stop LHCS per hour will attract custom off the stoppers (even if it takes the same time) and release units for strengthening the rest.
I think we're both of the opinion that fewer, longer, true expresses would be better than the current plans, but even if that was to happen, it would be a mistake to have any of the 3/4 expresses omit Huddersfield. Partly because Huddersfield is too big a market (both in and outbound) to miss, but also because very little would be gained by doing so, other than one express each hour being only half full.
I think that there is a lot of suppressed demand, and I bet that not stopping at Huddersfield would not mean a half-empty train.
The worry for me is how busy the 2 semi-fast services will become, as most will be single 185s for the foreseeable future.
LHCS would release some units
The Hull and Scarborough services are already overcrowded with just calling at Dewsbury and Stalybridge in addition to Huddersfield in the core- adding pax for half of the intermediate stations either side of Huddersfield won't be pretty!