Actually STR means very little once you are 50. STR only effects the postion on the Approach Meter for a particular item. Once you learn the locations of those it is quite easy to hit them. You then maximize your INT to acquire more items.

With the way the stats are given to you as a BTN, even with a (-15 STR) from traits, your position on that approach phase is still solidified. Allowing you to maximize yield with INT.