Ok, I'm back. Can't take it anymore.

Nobody should just dump their 30 points into any stat, even after weightings. Why? Because stat weights don't tell you where you are right now.

After materia and gear, if you are 10 STR away from the next tier of block dmg reduction % or whatever, then spend 10 of your 30 in STR. If you need 35, then VIT it is... unless your DEX is close enough for the next tier. Materia and bonus points should be allocated together and with some thought and both can be redone if new gear arrives and adjustments need to be made.