SP
Haven't been to Cabair for some time, but most of the Instructors at Elstree are relatively young and are looking to move off to the Airlines. That doesn't mean that they are no good, of course.
That's probably true of other Cabair locations.
There were one or two part timers at Elstree who instruct for the love of it (one is an FO with Monarch, the other an Optician) - I have flown with both in the last 12 months and would recommend them. The CFI is a career instructor and examiner, but I've never flown with him.
The optician is also an examiner by the way.
PM me if you want names.
Cabair are, however, not noted for being particularly cheap!
Can't help with BAFC.
But go and have a look round these places and chat to the staff. Don't be shy - it's your cash after all! If there are any students around, offer them a coffee and ask about how it's going and what they think of the instructors.
Alexa