well, I'll try to write my way of the Samurai. Because I think at some level range is better to use /thf or /war and /rng.
Level 1-29:
I started with sam/war. Well, you have no other choice, /war is the best sub job for a party, till you hit level 30. And you can tank a mob, because with Third Eye you can evade every 1min 1 physical attack, and Defense Bonus is also nice to have. Ah, and Provoke to get off a mob from a healer :p .
Samurai's ability:
(passive)
- Resist Blind (worthless)
- Store TP I
(active)
- Meikyo Shisui (2hr)
- Warding Circle (worthless, till you are doing your AF3)
- Third Eye
Warrior's ability:
(passive)
- Defense Bonus
(active)
- Provoke
Level 30-49:
Most of my time here I was sam/thf. Because Sneak Attack + Tachi: Enpi did great dmg (300-500 dmg) and it's also good for a party without a thief. Sure, you can still play here sam/war, but the damage was nice in Crawler's Nest and good for expchains

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Samurai's ability:
(passive)
- Resist Blind (worthless)
- Store TP I
- Store TP II
- Demon Killer (/laugh)
(active)
- Meikyo Shisui (2hr)
- Warding Circle (worthless, till you are doing your AF3)
- Third Eye
- Meditate (woot! finally)
Thief's ability:
(passive)
- Gil Finder
- Evasion Bonus I
- Treasure Hunter I
- Resist Gravity
(active)
- Steal
- Sneak Attack (nice effect)
Level 50-60:
I was here sam/war again. At level 50 with sub job /war you will get a great ability, Double Attack. With Double Attack you could get much faster TP than a sam/thf.
Samurai's ability:
(passive)
- Resist Blind (worthless)
- Store TP I
- Store TP II
- Demon Killer (/laugh)
- Store TP III
(active)
- Meikyo Shisui (2hr)
- Warding Circle (worthless, till you are doing your AF3)
- Third Eye
- Meditate (woot! finally)
Warrior's ability:
(passive)
- Defense Bonus
- Resist Virus (/cough)
- Double Attack (TP boost)
(active)
- Provoke
- Beserk (best Attack boost in game, expect Souleater)
- Defender (well, I just use it when I need to help for Trick Attack on Tank)
Level 60-
Well, I'm now sam/rng and I don't think I'll change my sub job till I hit level 75. Because sam/rng rocks if your equipment has enough +range accuracy (I have atm ~+42). And I can just say, I build much faster my TP than a sam/war with Double Attack. Because he will miss a lot more than me and Barrage is a mini-Meditate :p. But the true reason why I can't stop play sam/rng is just about Sidewinder. I can do 500-800 damage on a IT mob and Tachi: Gekko or Tachi: Yukikaze just a half what I can do with Sidewinder.
Samurai's ability:
(passive)
- Resist Blind (worthless)
- Store TP I
- Store TP II
- Demon Killer (/laugh)
- Store TP III
(active)
- Meikyo Shisui (2hr)
- Warding Circle (worthless, till you are doing your AF3)
- Third Eye
- Meditate (woot! finally)
Ranger's ability:
(passive)
- Alertness (does it work ?!)
- Accuracy Bonus I (woot!)
- Rapid Shot (good skill)
- Accuracy Bonus II (wooot!)
(active)
- Sharpshot (I can't live without it)
- Scavenge (wow, I found a worm..)
- Camouflage (um.. wears off when I just used it..)
- Barrage (much better TP builder than Double Attack. 1-5 hits so ~16-60% possible and great damage)
Level 65-75
Ok, between this level range is definitly the best choice Thief for your subjob. Sure you can play as sam/war but you will make better damage with sam/thf than with /war or /rng. One thing you should know now. When you hit level 65 you can make renkei3 and you will do it till Lv75. So that is why you can't play sam/rng now but for farming and hunting NM is still the best choice. And don't worry when you have a Thief or ???/thf in your Exp-Party. The best skillchain I ever had was with a drk/thf: Skillchain -> Spinning Slash > Tachi: Kasha = Light. And about the position: Drk > Mob < Paladin < Sam. The drk's WS can do enough hate to make the mob face to him. Then you will use SaTa + WS on Paladin to bring the hate back to the tank.