Cotoneaster ID?

[Bat135]

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.

 

[Bat135]

Also. Any ideas on how to restrict its size as I don’t want it to get much bigger but have heard that harder pruning can create lots of vigorous growth that take ages to weep again.

 

[Bat135]

It’s in an arching tree like form with multi stems.