Cotoneaster type?

Hi. Does anyone know what type of cotoneaster this is? I have narrowed it down to either willow leaved or coriaceus. But not sure. If it helps I think it is semi evergreen as it loses most but not all of its leaves over winter. It is very tall over 12ft and is multi stemmed with arching habit.

Also. Does anyone have any ideas on how to control its size as don’t want it to get any bigger or bushier but like it’s form. I have heard hard pruning creates lots of vigourous growth that takes ages to bend and weep again?

 

How old is yours?
I bought a Cotoneaster x Watereri a few years ago. Mine looks similar to yours but mine isn't yet fruiting. There are quite a few that look similar. I wanted to buy the pendulous form, but made an error. Mine definitely has matt green leaves, as described below:

Cotoneaster x Watereri - Cotoneaster Tree

 

Cotoneaster Hybridus Pendulus: Cotoneaster Tree

This is a pendulous form, for example.
I hope you find out!

 

Cotoneaster cornubia is common and it does often form a multistem tree/shrub. I think that it's the length of the branches that are causing the weeping habit rather than a pendula variety.

Hard pruning will create more growth and if you like what you have now it is better to just lighting prune the bits you don't want and keep doing that. It you take the tips off the main Upwood shoot, you will knock back it's vertical growth and then just tip prune any stem that is to long.

 

There are so many varieties and many of them look very similar - as no doubt you've found out already.
I had a similar problem.
There's a school near me with a beautiful specimen about 15ft high and laden with berries in early winter.
I searched for a long time to try and identify the variety, but with no certainty as they all look so similar.
If you know when it flowers and when the berries appear you may be able to narrow it down as this does vary with the different varieties.
In the end I bought cotoneaster lacteus which seemed to be the closest match.
It flowers later than many and the berries persist over winter despite the best efforts of the blackbirds.
It has grown very well since planting a couple of years ago and I'm very pleased with it.