Well another thought, how long have you been playing? Do you play daily, weekly, what. A 120 Berg (even though Bergs tend to be smaller than stated) is a pretty large tip opening. The fact that it's also a 3 baffle which is the least amount in Bergs regular line dictates a softer reed in most situations. your #2 should not be causing the problem.
You state "I've just had it thoroughly serviced" that could be the problem, something was not done properly, one or any number of 'adjustments' a tech might have made could have screwed up something else. You might have to take it back and have it looked at again and be prepared to play it as the tech works it.