Why do non-caster DPS do this...?

[MoofiaBossVal]

I am not wasting my Midare Setsugekka, my Tsubame, or my 3 meditation stack Shoha on an add with less than 10% health left.

[StriderShinryu]

I am not wasting my Midare Setsugekka, my Tsubame, or my 3 meditation stack Shoha on an add with less than 10% health left.

Pretty much this for me as well. If I know the other DPS in the party has better AoE than I do and the tank is likely to continue AoEing, or there's a DoT on the almost dead enemy, or there's a WHM who is Holy casting. I've been running a lot of SAM recently and I'm not going to blow my cooldowns on something that's going to die in seconds from what the other party members are doing better than I can anyway.

[MOZZYSTAR]

I am not wasting my Midare Setsugekka, my Tsubame, or my 3 meditation stack Shoha on an add with less than 10% health left.

Same, more or less xD And then once I use up my stronger procs on a higher HP enemy, I go back to the lower hp enemy and take it down with a couple of normal shots.