I've been learning to fly the wonderful Extra 300 with a very experienced instructor these past few weeks.
Something we've looked at in the extra is the dreaded base to final stall (in a skidding turn) & stalling in the slip on final - which is something you need to be aware of in the Extra, as you usually HAVE to slip on final, else you can't see the runway!
As said by these guys, as long as you keep a sensible attitude, not too high an angle of attack, this will give you some margin over the stall & you're fine. Keep the nose nice and low.
We demonstrated what happens when you put in too much backpressure & rudder in the turn... you get a very, very nasty surprise. For me this involved flipping over instantly, then subsequently recovering from an inverted dive 60 degrees or so nose down. Obviously we practiced this at some height. I can assure you, if you do it in the circuit or on final you are dead.