I thought you meant 10-15 knots above the stalling seed for an aircraft at 30 degrees AOB, but take it that you mean 10-15 above the stalling speed for straight and level flight, in which case I agree that your margin is reduced, but, given that in the avoidance situation your concern is not with continuing the approach to landing, you are of course at liberty to lean on the throttle a bit. Certainly not a fun place to find yourself, though, and we agree that it's best to stay behind the other bloke rather than risk him popping up on you unexpectedly.