You want to upgrade to a Cannonball from a Keilwerth?!?!?!? Stick with your Keilwerth. Much better horn. If you want to upgrade, look at a Keilwerth SX90 or an SX90R

I dont know about your playing style or such, yet I do know the nature of the Cannonball Saxes. I sell them. I am not one to push into a sale though. Having met with the pwner of Cannonball and heard him play I trust his horns. I also have been in a number of bands that have Cannonballs in them and all the best players that I have met have been playing on the Big Bells. I would recommend the Mad Meg, it is my favorite of the finishes. I my self play in a top college jazz band on bari. I play on the Black and silver Cannonball and it is really lovely! In that same band there are 2 others playing on cannonballs, both tenors. One has an all silver and the other has a mad meg with lacquored keys. The first tenor is also in a traveling jamacian ska band playing tha meg. I know that the keilworth saxes projection is nothing like the cannonballs. In this jazz band I play in the first alto plays on a keilworth. he can never project loud enough to compensate for the yamaha 2nd alto and the other cannonballs around him. needless to say, he was kicked out due to his lack of performance. My Bari has been the best investment that I have made, it is going to take me far and I have a reasurance that I have not paid tons for it. I also know many people that are recording on the Big Bells, even big name people. All in all, with the experience that I have had with both keilworth and cannonballs, yamahas and yanigisawas, and conns gallour, I would choose, and have, the cannonball for the intonation projection and price.