Maple Story character guides?

Question

In looking for leveling guides for a bowman, I have seen something I think is weird. Could someone please explain it to me? Ok, so here's what's confusing me. Many of the guides at one point say, save x amount of points and then put it on this skill. Why would you save the points? why not put the points on the skill 3 at a time until it's maxed? Is there some benefit to saving the points? Here is an example below, why save 15 points and then max arrow bomb/iron arrow instead of adding the 3 points at every level advance?

FA-LESS BUILD:

Do in the following order:

1 Arrow Bomb/Iron Arrow

19 Bow/Crossbow Mastery(Pt 20 doesn’t give mastery, only ACC)

6 Bow/Crossbow Booster (1 Minute)

2 Soul Arrow (1 Minute)

14 Arrow Bomb/Iron Arrow

20 Power Knockback (Maxed)

Save 15 points and max Arrow Bomb/Iron Arrow

4 Bow/Crossbow Booster

8 Soul Arrow

10 Bow/Crossbow Booster (Maxed)

10 Soul Arrow (Maxed)

Answer 1

Well actually every level up increase both mp and hp and the more lvl u increase the better it is.

If u didn't save skills up it's like every after every 20 shots they have to refill mp again

Answer 2

They say save point because if you keep adding them as soon as you get them then it'll be a waste of your MP and mesos because it does not enough damage for the mana increase so this method saves you money and pots.

Hope I Helped!

If you want another guide try www.hidden-street.net