As far as I'm aware, shining ruby doesn't have a cap. Therefore, where pro V went from 60 to ~200 def, the bonus provided by shining ruby went from AN EXTRA 6 def to AN EXTRA 20 def (not much but still an increase. A turtled up PLD can get over 200 def from shining ruby). Titan's favor has always sucked and I doubt it is ever going to be worth it.
