It's not hard to blow, but you have to be mindful of tuning more. It's not as bad as a lakey though. The chamber doesn't look as large as the last ones a few months back, those ones looked somewhat taller, if that makes any sense. I am not going to let G.A.S. get me this time, I'm sticking with this and going to actually take to time to get used to it, which will take a while. This rast piece is the 4th or 5th mouthpiece I've played on this semester, and I'm driving my professor nuts. He yells at me to pick one and stick with it.
Java 3 reeds are somewhat soft reeds anyways (to me), or at least more flexible. My previous setup for lead alto included a lakey 5*3 and Fibracell Premiere 4 reeds. That was about a month ago, and since then I've been playing on a Vandoren Jumbo Java A45 with Fibracell 3.5. I can't play Fibracells with the Rast though, it just doesn't work right. Fred Rast plays one of these with a Java 3.
The mouthpiece seems to play better if you take more mouthpiece into the mouth. I put two patches on the beak, one to protect the mouthpiece, and the other cut short so I can learn to keep my teeth at a certain spot so I can learn to get comfortable playing with more mouthpiece in my mouth.
I am going to try and get some sound clips of me noodling around with it, probably next week.