Jesus...OAA have automatically dimming lights linked to the projector! Another explanation could be...... Sit in a nice cosy OAA classroom in your usual shirt and tie.....then sit in a Cabair classroom with you coat on (no that really is no exageration!!!). Cabair GS purely judged on teaching and quality of instructors 10/10 though so every cloud an all that!
Can't explain the BCFT difference though!