I strongly recommend to start new game or reset all perks (that were activated) with some mod.
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1. All base perks that had 5 level have only 2 levels: new first is equal old first, new second is equal old fifth (skill requirement are same):

Alchemist
Armsman
Barbarian
Overdraw
Shield Wall
Juggernaut
Agile Defender
Light Fingers
Enchanter
Light Touch
Haggling

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2. For all Mage Schools (Alteration, Conjuration, Destruction, Illusion, Restoration) main perks (Novice/ Apprentice/ Adept/ Expert / Master) change spell cost NOT only for its level. Its change spells by next concept:

Novice Perk ( skill = 00 ):
Novice spells - 50% from current cost
Apprentice spells - 90% from current cost
Adept spells - 90% from current cost
Expert spell - 90% from current cost
Master spell - 90% from current cost

Apprentice Perk ( skill = 25 ):
Novice spells - 90% from current cost
Apprentice spells - 50% from current cost
Adept spells - 80% from current cost
Expert spell - 80% from current cost
Master spell - 80% from current cost

Adept Perk ( skill = 50 ):
Novice spells - 90% from current cost
Apprentice spells - 90% from current cost
Adept spells - 50% from current cost
Expert spell - 80% from current cost
Master spell - 80% from current cost

Expert Perk ( skill = 75 ):
Novice spells - 90% from current cost
Apprentice spells - 90% from current cost
Adept spells - 90% from current cost
Expert spell - 50% from current cost
Master spell - 80% from current cost

Master Perk ( skill = 100 ):
Novice spells - 80% from current cost
Apprentice spells - 80% from current cost
Adept spells - 80% from current cost
Expert spell - 80% from current cost
Master spell - 50% from current cost


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3. Some another perk requirements and tree sequences were changed:

Alchemy:
- Experimenter now needs 30/40/50 skill level instead 50/70/90 before

OneHanded:
2 levels instead 3 (skill requirement are minor changed):
- Bladesman
- Bone Breaker
- Hack and Slash

TwoHanded:
2 levels instead 3 (skill requirement are minor changed):
- Skullcrusher
- Deep Wounds
- Limbsplitter

Marksman:
- Changed requirements for some perks (for example, Power Shot and Hunter's Discipline were switched, Ranger was needs only Overdraw )
- Bullseye: 25% instead 15%
- Critical Shot: 2 levels instead 3 (skill requirement minor changed):

Smithing:
- Daedric Smithing needs Dragon Armor OR Ebony Smithing

HeavyArmor:
- Conditioning needs Well Fitted

LightArmor:
- Deft Movement chance 15%(instead 10%)

Pickpocket:
- Changed requirements for almost all perks ( For Example: Poisoned and Extra Pockets need only Light Fingers )

Lockpicking:
- Quick Hands, GoldenTouch, Locksmith are need only Novice Locks perk (skill requirement are same)
- Apprentice Locks and Expert Locks were removed
- Novice Locks: Novice locks are much easier to pick. Apprentice and Adept locks are a little easier to pick
- Adept Locks : Apprentice and Adept locks are much easier to pick, Expert and Master Locks are a little easier to pick.
- Master Locks: Expert and Master locks are much easier to pick.

Sneak:
Main branch was divided on three:
- Silent Roll needs only Stealth, Shadow Warrior needs only Silent Roll (skill requirement are same)
- Light Foot needs only Stealth (skill requirement are same)
- Muffled Movement needs only Stealth, Silence needs Muffled Movement (skill requirement are same)

Speechcraft:
- Allure was moved to separate branch, Merchant needs only Haggling.

Alteration:
- Changed requirements for some perks (for example: Atronach needs Magic Resistance instead of Expert Alteration and 90 skill instead of 100, Magic Resistance needs Mage Armor, Mage Armor needs Novice Alteration )

2 levels instead 3 (skill requirement are minor changed):
- Mage Armor
- Magic Resistance

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Author's Comments:
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