In Maple story should bowmans use arrow blow or double shot

your choice
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Well, I just want to clear some things up. This question has been debated over since MapleStory came out.
Most people would tell you to max Double Shot because it does more damage on average.

First of all, Critical Shot is not what it seems. When maxed, the description says "40% chance of 200% damage" or something like that. But this is misleading. It does not double the damage, but instead adds 100% of your base damage.
Lets say your base damage is 100%.
(WARNING: Math.)


If both arrows in Double Shot critical:
(130%+100%)*2= 460%


If Arrow Blow criticals:
260%+100%= 360%


If one arrow in Double Shot criticals:
(130%+100%)+130%= 360%


If Arrow Blow does not critical:
260%


If Double Shot does not critical:
260%


To make things simpler, let's say Critical Shot works 50% of the time, not 40%


Double Shot would do:
460%, 25% of the time
360%, 50% of the time
260%, 25% of the time


Arrow Blow would do:
360%, 50% of the time
260%, 50% of the time


Using a utility calculation:


Double Shot:

(460*.25)+(360*.5)+(260*.25)=
utility of 360% damage


Arrow Blow:
(260*.5)+(360*.5)=
utility of 310% damage


Double Shot is stronger.

This increases further with the third job skill "Mortal Blow" as it can add another +150% to each arrow and both arrows in double shot have the 10% chance of killing a monster with less than 50% hp (which gives you a total of 19% chance to instantly kill it with 1 attack)

(Note that I have not included the fact that Double Shot has higher consistency because it fires two arrows, and Arrow Blow has higher knockback because its arrows consistently do more damage than 1 arrow from Double Shot.)