the 2 balls are somewhat similar in the numbers, but different covers for sure
one being a hybrid and 200 dull, the other being a pearl
definitely 2 different lengths and shapes, most likely meant to compliment each other, your league shot could absolutely be masking this.
Need to know more info on layouts as stated above
surfaces and pin distances, pin location, etc will help determine the expected motion
do not despair, these can be fixed with surface, weight hole(s), etc
You have to expect to tweak a new piece these days, its just the way it is in todays modern game