bolt uses per charg

on the front page it says that you need to use a bolt 2 times to gain the first charge 3 for the second and 4 for the third. from experience i know that when using fire bolt you only need to use it twice to get to the first charge and 2 more times to get to the second and 2 more times to get to the third lightning bolt takes 3 uses for each charge and so does ice bolt, although you have to be quicker when doing it for ice bolt. (when doing all three i cast one bolt charged then cast another rapid fire, i did not charge 5 for ice bolt.) anyone else want notice this? you guys can change it if you find that I'm right. last time i tried to change something i got yelled at :/

Maybe this bit from JPWiki would explain the different charge rates you're getting.

If NA does follow JP in how the trinity staff charges, our article may be in need of update on this.

   *Attribute is stored by the power of magic bolt attacks.
   * 増加ポイント Point Increases
         o アイスボルト ･･･ 24・ ・ ・ 24 points per Ice Bolt
         o ファイアボルト ･･･ 38・ ・ ・ 38 points per Fire Bolt
         o ライトニングボルト ･･･ 28 ・ ・ ・ 28 points per Lightning
   * 増加ポイントはチャージ数に関わらず一定。 Points are constant regardless of the number of charges.
   * 1秒当たり1ポイント減少する。 Points are reduced at one point per second.
   * 一定値貯まると対応属性のボルト魔法ダメージが上昇したり中級魔法を使用できる。 Intermediate use the magic spell damage and increases the corresponding attribute to earn a constant charge.
         o 0段階(0~60) → ボーナス無し Stage 0 (0-60) → No bonus
         o 1段階(60~120) → ボルト魔法ダメージ 5% 増加 Stage 1 (60-120) 5 volt →% increase magic damage
         o 2段階(120~200) → ボルト魔法ダメージ 10% 増加 Stage 2 (120-200) 10 volt →% increase magic damage
         o 3段階(200~280) → ボルト魔法ダメージ 15% 増加 | 中級魔法使用可能 Stage 3 (200-280) 15 volt →% increase magic damage |  Intermediate magic is enabled.
   * 2段階から3段階に上がる際にポイントが最大(280)になる。 When raised to a maximum of three points from two stages (280) will be.
     その後一切ボルト魔法で攻撃をしなくても80秒間3段階を維持可能。 Stage 3 can be maintained for 80 seconds without any bolt usage or attack with magic.