holla - With me being on staff with Jet I'm definitely not going to steer you away from trying any ball in the lineup. With that being said anything we have are really great pieces for what they are designed to do. Even the ones poured over seas. I wouldn't have accepted the staff contract if I didn't feel that was the case.
My personal favorites right now are the Armor, Altitude and the new Maximum Altitude Pearl.
What exactly are you looking for in the Altitude? As Charles said, the Altitude is indeed a low RG ball meant for heavy oil conditions and does have a symmetrical core. I threw this ball in box condition at the USBC National event and it gave me an awesome look while burning a line for me to move down to weaker equipment. I also use it quite regularly on heavier oil tournament patterns. Stands up quite nicely in the midlane and has great continuation through the pocket.
If you go and like the Jet Bowling facebook page you can find some videos of the Altitude and Max Altitude as well as the rest of the current Jet lineup. By liking the page you will also have a chance to win a Altitude/Max Altitude/Blackbird (new spare ball).
https://www.facebook.com/pages/Jet-Bowling/381983365201760All I can say is check them out and you won't be disappointed!
Shawn Petty
Jet Bowling Staff Member