Anyone add a coolant recovery/overflow tank?

Seems weird not to have one. I added one to a Beta 525 I used to have and it seemed to work pretty well. Any point in adding it to a 2014?
Parts fiche shows them on older models but not on the '14.
Wonder why they dropped them?

Here's the only place I could figure out to mount it:
Will see if it does anything.

On my 310 I tested coolant temperature with a termometer riding in my backyard track wich is not the best for cooling and coolant temp was of 78-79 °C, in fact I've not seen the fan working yet (on mine I just deleted the thermostat by using silicon rad hoses for a TC, as suggested here on CH)