They were for a bit when the production of their high-end/3-color balls was moved to Utah. Well, maybe not exactly the same but made in the same plant with the same materials so I imagine they were fairly close. Everything is back in San Antonio now though so I would consider the two completely separate. They might have same resin supplier, no idea really, but even if so that's not enough so consider them as using Storm covers.

I'm actually not sure what the relationship really is. I know there's the ability for Storm to lean on 900 Global to manufacture some balls in San Antonio, like they did with the Roto Grip Loco balls, but I don't think anything like that is happening now.

As far as i know

Dream, dream on, dream big
Moxie, Respect, respect pearl

All had storm covers per what i was told, and produced in Utah at the storm facility.
 
Then storm put the capability to pour 3 color balls in San Antonio. So starting with

 dream big pearl, and respect solid---those were the first true 3 color San Antonio production balls ever...in history.  They didn't have the capability of doing it until those two releases.

Now who knows what ball is produced where as they sharing resin materials, and what not as well as box labels....

But i have seen the quality go way up since the storm merger, less cracking as well!
Storm/roto/900 global and Amf are a good group of equipment to be throwing that's for sure!!!

honey badger been great for me. On old wood lanes,