The forest Sling-er (build critique)

[dutman]

Ive search but could not find any other builds like this, so im posting it and looking for contributions good or bad to improve this guy.

0 40 Halfling: (Fearless, Good Aim, Lucky, Skill Affinity: Listen, Skill Affinity: Move Silently, Small Stature)
1 ro 01: Rogue(1): Point Blank Shot
2 r 02: Ranger(1): Favored Enemy: Undeads, {Dual Wield}
3 r 03: Ranger(2): Weapon Focus: Sling
4 r 04: Ranger(3): STR+1, (STR=14)
5 r 05: Ranger(4)
6 r 06: Ranger(5): Rapid Shot, Favored Enemy: Humans
7 ro 07: Rogue(2): {Evasion}
8 r 08: Ranger(6): STR+1, (STR=15)
9 r 09: Ranger(7): Called Shot
10 r 10: Ranger(8)
11 r 11: Ranger(9): {Improved Two-Weapon Fighting}
12 r 12: Ranger(10): STR+1, Improved Critical: Sling, Favored Enemy: Elementals, (STR=16)
13 ro 13: Rogue(3): {Uncanny Dodge I}
14 r 14: Ranger(11)
15 r 15: Ranger(12): power attack
16 r 16: Ranger(13): STR+1, (STR=17)
17 r 17: Ranger(14)
18 r 18: Ranger(15): cleave, Favored Enemy: Giants
19 ro 19: Rogue(4)
20 ro 20: Rogue(5): STR+1, (STR=18)
21 r 21: Ranger(16): epic weapon focus: sling
22 r 22: Ranger(17)
23 r 23: Ranger(18)
24 r 24: Ranger(19): STR+1, great strength I, (STR=20)
25 r 25: Ranger(20): Favored Enemy: Dragons
26 r 26: Ranger(21)
27 r 27: Ranger(22): great strength II, (STR=21)
28 r 28: Ranger(23): STR+1, Bane of Enemies, (STR=22)
29 ro 29: Rogue(6)
30 f 30: Fighter(1): Great Strength III, Epic Prowess, (STR=23)
31 f 31: Fighter(2): great cleave
32 f 32: Fighter(3): STR+1, (STR=24)
33 f 33: Fighter(4): Weapon Specialization: Sling, epic weapon specialization: sling
34 ro 34: Rogue(7)
35 ro 35: Rogue(8)
36 ro 36: Rogue(9): STR+1, Overwhelming Critical: Sling, (STR=25)
37 ro 37: Rogue(10): Opportunist
38 ro 38: Rogue(11)
39 ro 39: Rogue(12): Devastating Critical: Sling
40 ro 40: Rogue(13): STR+1, **Rogue Bonus Feat**, (STR=26)

Summary Class Race Rogue(13), Ranger(23), Fighter(4), Halfling

Abilies STR: 13 (26)
DEX: 18
CON: 12
WIS: 8
INT: 14
CHA: 10

Statistic Hitpoints: 388
Skillpoints: 314
Saving Throws (Fortitude/Will/Reflex): 22/16/24
Saving Throw bonuses: Traps: +2, Fear: +2
BAB: 28
AB (max, naked): 38 (melee), 38 (ranged)
AC (naked/mundane armor/shield only): 23/30
Spell Casting:
Alignment Changes: 0

Skills Disable Trap 43(45), Hide 43(47), Move Silently 43(49), Persuade 43(43), Search 43(45), Spot 43(42), Tumble 40(44), UMD 16(16)


Skills by Level ro 01: Disable Trap(4), Hide(4), Move Silently(4), Persuade(4), Search(4), Spot(4), Tumble(4), UMD(4), Save(8),
r 02: Hide(1), Move Silently(1), Search(1), Spot(1), Save(10),
r 03: Hide(1), Move Silently(1), Search(1), Spot(1), Save(12),
r 04: Hide(1), Move Silently(1), Search(1), Spot(1), Save(14),
r 05: Hide(1), Move Silently(1), Search(1), Spot(1), Save(16),
r 06: Hide(1), Move Silently(1), Search(1), Spot(1), Save(18),
ro 07: Disable Trap(6), Hide(1), Move Silently(1), Persuade(6), Search(1), Spot(1), Tumble(6), UMD(6),
r 08: Hide(1), Move Silently(1), Search(1), Spot(1), Save(2),
r 09: Hide(1), Move Silently(1), Search(1), Spot(1), Save(4),
r 10: Hide(1), Move Silently(1), Search(1), Spot(1), Save(6),
r 11: Hide(1), Move Silently(1), Search(1), Spot(1), Save(8),
r 12: Hide(1), Move Silently(1), Search(1), Spot(1), Save(10),
ro 13: Disable Trap(6), Hide(1), Move Silently(1), Persuade(6), Search(1), Spot(1), Tumble(4),
r 14: Hide(1), Move Silently(1), Search(1), Spot(1), Save(2),
r 15: Hide(1), Move Silently(1), Search(1), Spot(1), Save(4),
r 16: Hide(1), Move Silently(1), Search(1), Spot(1), Save(6),
r 17: Hide(1), Move Silently(1), Search(1), Spot(1), Save(8),
r 18: Hide(1), Move Silently(1), Search(1), Spot(1), Save(10),
ro 19: Disable Trap(6), Hide(1), Move Silently(1), Persuade(6), Search(1), Spot(1), Tumble(4),
ro 20: Disable Trap(1), Hide(1), Move Silently(1), Persuade(1), Search(1), Spot(1), Tumble(4),
r 21: Hide(1), Move Silently(1), Search(1), Spot(1), Save(2),
r 22: Hide(1), Move Silently(1), Search(1), Spot(1), Save(4),
r 23: Hide(1), Move Silently(1), Search(1), Spot(1), Save(6),
r 24: Hide(1), Move Silently(1), Search(1), Spot(1), Save(8),
r 25: Hide(1), Move Silently(1), Search(1), Spot(1), Save(10),
r 26: Hide(1), Move Silently(1), Search(1), Spot(1), Save(12),
r 27: Hide(1), Move Silently(1), Search(1), Spot(1), Save(14),
r 28: Hide(1), Move Silently(1), Search(1), Spot(1), Save(16),
ro 29: Disable Trap(8), Hide(1), Move Silently(1), Persuade(8), Search(1), Spot(1), Tumble(6),
f 30: Save(4),
f 31: Save(8),
f 32: Save(12),
f 33: Save(16),
ro 34: Disable Trap(5), Hide(5), Move Silently(5), Persuade(5), Search(5), Spot(1),
ro 35: Disable Trap(1), Hide(1), Move Silently(1), Persuade(1), Search(1), Spot(5),
ro 36: Disable Trap(2), Hide(1), Move Silently(1), Persuade(2), Search(1), Spot(1), Tumble(2),
ro 37: Disable Trap(1), Hide(1), Move Silently(1), Persuade(1), Search(1), Spot(1), Tumble(4),
ro 38: Disable Trap(1), Hide(1), Move Silently(1), Persuade(1), Search(1), Spot(1), Tumble(4),
ro 39: Disable Trap(1), Hide(1), Move Silently(1), Persuade(1), Search(1), Spot(1), Tumble(2), UMD(2),
ro 40: Disable Trap(1), Hide(1), Move Silently(1), Persuade(1), Search(1), Spot(1), UMD(4),