Teesside Metro 2; some improvements

So, in the previous post I roughly outlined what they're doing with their super budget 'only the most minor improvements we can get away with' metro design.
I fully understand the reasons for doing this of course, Teesside is a bit small and oddly put together for a metro- very spread out and with a very off-centre centre (that being Middlesbrough city centre) and a big river cutting right through it.

The true improvements that would be made to the Teesside Metro, if anything would be cuts. As I've mentioned many small towns have multiple stations which is just silly overkill.
But, even beyond I get into ideal world stuff there are some improvements that can be made to the existing metro proposal...

Hartlepool

Only as far north as Hartlepool central? Yes, this is a nicely central station and yeah Hartlepool isn't huge but it does have 100,000 people and this entire system is for half a million. The north really needs some service.
Looking at things from a very normal Metro perspective as I did in Tyne and Wear I'd place three stations north of Hartlepool Centre- Headland, St.Hills then finally Hart. All of these being on the existing railway line.
This probally is a fair bit overkill though so a merger of St.Hills and Hart would seem logical. I will note here for anyone from Hartlepool reading this- yes, Headland isn't actually on the headland. I could find no better name for this station located just west of it though.

Norton

There seems to be quite a significant gap between Billingham station and Stockton station. A huge chunk of the Middlesbrough-Stockton area live up here yet there are no plans for stations.
Ideally I would place two here, a North Norton towards Calf Fallow Lane, west of the A19, and a South Norton, just by where the A1027 cuts across the railway.
Having at least one Norton station (South Norton is in the most built up area so I'd go with this one) is an absolute must.

Darlington

Somewhat similar to Hartlepool, Darlington is a rather large town of close to 100,000 people yet is only being served by one station. What is odd here though unlike in Hartlepool is that there is already another station further north in Darlington; for the metro to go to bot Darlington Central and North Road really seems quite a basic thing to do and I've no clue why they're not doing this.

These extensions are all extensions to be made without diverging too far from the existing plans for a metro that involves just upgrading the existing lines and I would sorely hope the authorities behind the Teesside metro plans considers these points.

I'm not in an artistic mood at all today so a rough map-