It does appear they weakened the core a bit being that it's listed having a lower flare potential of 4-5" which is more to the medium side compared to most of today's high performance balls. The last time 900 Global went with a strong cover and weaker core was the Cobra SE and look how successful that ball was. On a lighter note, anyone besides me wonder why 900 Global doesn't have a lefty ball tester in their ball reaction videos? Just my observation...being left-handed! lol