Things never work out how you expect do they? I've been playing a 2 chamber berg for a while now, really like it but I always fancied playing something with more edge. So this zero chamber berg came up on ebay, £100, nobody bidding on it so I got it.
Put it on and started playing, and yes, it has that edge, the pink panther sound great, but the more I played it the more I came to feel that I lost more than I gained. It just didnt' have the versatility of my 2 chamber.
I could make the 2 chamber berg sound like the zero, but you can't make the zero chamber sound like the 2. You have what you have and that's it.
Also, I had my teacher play them and I was really surpised in the lack of body from the zero chamber. Yeah it had edge, but all the richness and projection had gone. I definitely lost more than I gained.
Well, it was worth the experiment, but I think I've satisfied my curiosity re mouthpiece experiments now...until the next one comes along that is