All of what you said makes sense except for the left side gear being a constant. Until we know exactly how they are going to change the balance of strength and vitality contribution to attack power (What if, for example, strength contributes nothing to attack power at all? Or becomes as weak as determination? And since vitality on tank gear is higher than strength, it would create a notable difference in AP gain on i210 gear) we cannot definitely say that it will be the exact same, hence not wearing it to remove that being a question in mind. What you can say is that right side i210 will be the exact same because the stats on the items themselves have not been said to be changing.
Also what Brannigan said.![]()