Cornishsimon, Can you explain in what way ?
These are guaranteed slots free of exorbitant charges and for specific routes.
The Emb195 has 118/119 seats in Flybe config and weight wise cheaper than a 319 even at Heathrow rates so will probably work well to/from Edinburgh/Aberdeen.
Lets just update/remind ourselves the routes that can operated with these slots.
Aberdeen/Edinburgh/Nice/Moscow/Cairo and Riyadh for a number of consecutive seasons - Not completed by Virgin !
Then any additional EU city.