First off, thanks for the support. Let me shed some light on how a ball company looks at it.
Not every ball we make is ideal for every bowler. We rely on the bowler and pro shop to pick and choose what is best for them. We plan our launches so that a verity of styles and conditions will be covered and than add in the different price points. When the sales on a ball whose performance and price point is covered by a new launch slows down we stop making them, they aren't bad they are just no longer in production. Like an IPhone, people that like a 4s are out of luck to buy a new one because they are no longer in production, but they may be in someone's inventory and become available at a discount.
We get lots of request for balls that preform like an older balls, usually about a year or so after the ball is out of production, so we plan on balls with similar motion but may have a new core or better cover. We try for an improved version. The latest and greatest my be the holy grail to someone and a "turd" to someone else simply because of the performance target we are aiming at.
We do try and keep some similarity in performance so that it has the Radical look to it.
When you find one you really like, look on our ball chart and see if there is one in the same quadrant. The tweak in the cover or the slight variation in drilling will usually get you to the performance you had. We do not discontinue balls as quickly as some of our competitors do and by the same token we actually launch the least of all ball companies.
I hope this helps explain some of the why's and what for's of Radical.
