I was making a set of Fortify Alchemy to 29% to be able to create stronger enchantments. For some reason my Fortify Alchemy gear only goes to a maximum of 23% and I've read/seen people creating enchantments with a 29% bonus.
I have 100 Alchemy skill and 100 Enchantment skill with all the necessary perks.
I was trying to do this: http://elderscrolls.wikia.com/wiki/Enchanting_(Skyrim)#Exploit
You can raise your Enchantment skill above 100, by using potions that increase your Enchantment skill.
To get the maximum possible enchantments you need to raise your Alchemy skill to the highest level. You can create Fortify Alchemy enchantments that will increase the effect of your potions considerably.
So you should first create a set of Apparel that gives you the highest possible bonus you can currently achieve to Alchemy. Use that set to create a batch of Fortify Enchanting potions. Now your enchantments should be stronger when you use the potions just before enchanting your gear.
You will have to do a few rounds of enchanting and creating potions if you're after the maximally possible effect. So, use your enchanted alchemy gear to create an enchanting potion. Then use that potion to create better Fortify Alchemy gear. Now you can use that improved gear to create a better enchanting potion, repeat until no more improvement is visible.
There are diminishing returns, so you won't be able to increase your stats infinitely.
The trick is to do multiple loops of Fortify Alchemy/Enchanting
You will need some cheap clothing for this.
Important is to have 100 Alchemy, 100 Enchanting, and (optional) 100 Smithing.
You will need at least the following Perks:
Create a 4 pieces of Fortify Alchemy Equipment (hat, gloves, necklace, ring)
With the clothing on, create some (4) Fortify Enchanting Potions
Create a new, stronger set of Fortify Alchemy Clothing by drinking those potions.
With the Stronger Set, Create some new Fortify Enchanting Potions (they're stronger as the previous ones.)
Now you'll create your Final set of Fortify Achemy Equipment (hat, gloves, necklace, ring) under influence of those stronger potions.
You now can use this Fortify Achemy set to create as many Fortify Enchanting Potions as you need to improve your other stuff.
(Optional) Create some Fortify Smithing Potions, and some (4) Fortify Enchanting Potions (obviously, while wearing your Final set of Fortify Alchemy Equipment)
(Optional) Create a set of Fortify Smithing Equipment (armour, gloves, necklace, ring)
(Optional) Improving weapons while under the influence of those Fortify Smithing Potions while wearing Fortify Smithing Equipment allows you to create the strongest weapons in the game.
Wear a falmer helmet and a circlet at the same time. This gives you five slots for fortify alchemy instead of four. I believe it maxes out being able to make potions that give +37% Enchanting for 30 Seconds. That's when you're wearing five +29% bonuses to alchemy and make the potion. I do not think you can go higher, correct me if I'm wrong.
It's a bug. Generally, 100 enchantment with 5/5 first perk and improved fortifies should give +25% alchemy with a grand soul without any potions. If in your version it only gives 21-23, you need to update your game.
The glitch that may be causing the problem concerns equipping the fortify alchemy equipment.
If you have 100 in alchemy and 100 in enchanting, 5/5, and the perks, then you should be able to begin with creating 25% fortify alchemy gear. If you can't, then check your magical effects before beginning. If they all are not in effect, try unequipping and re-equipping your fortify alchemy gear. There appears to be a glitch and sometimes the effects are not properly activated. The unequipping and re-equipping of the gear seems to correct the problem.
