3 atk vs arcanes
2 atk dex vs LA/HA in order to keep accuracy at decent point since 2 atk 10 dex ornaments already lower ur accuracy
full dex sin with dex tome has around 17k accuracy
2 atk 10 dex= 15k
u feel the difference
remove ur weapon and do this
use 2 atk 9 dex = u will hit something
use 3 atk = u will see it hits harder
since without weapon u have no dmg spikes due to low end and high end of weapon and u can clearly see which one makes a difference and whats better for each