I will first say that I visited every possible reliable source of Skyrim info. From wiki to USP to even some yahoo answers. I did not find what I was looking for.
Okay.
I playing Mage style. So when I found some bracers that have +13% Heavy Armor better something I went to Disenchant them. Great. 1 skill up. Anyway, 2-3 levels later, I find ANOTHER bracers with +25% Heavy Armor better something. Same deal except 13% and 25%.
I can't disenchant 25% ones. It says I already know this enchantment. Obv, but this one is stronger. Why? I only have 13% enchantment in my list. This was just a example I know best cuz I have 2 of these 25% bracers waiting in chest for some revelation.
Also I have better Robes, rings, amus to disenchant, better weapons with better enchants and I can't do anything with them.
I understand Enchanting well and I am making phat profit even before I've read "the tips". This is the only thing I don't understand why game won't let me disenchant Items that have higher value of my previosly learned disenchant. It's not like I can exploit this because once I learn 25%, only possible move is to find bracers with 30-50%...
And can someone please tell me what am I supposed to do with APPRENTICE Robes which I have no use anymore and I disenchanted NOVICE robes earlier and have MUCH weaker effect and I have Armor waiting to be enchanted.
I stored all this in chests because i don't wanna make mistake.
Any clarification on this subject would be much appreciated.
EDIT:
Few examples...
Enchant I can use:
Foritfy Destruction 8%. I have stuff that if disenchanted could make that 15%.
Fortify Conjuration 8%. Same
And many of same low level stuff I disenchanted when I was in 3-8-10 levels range.
Thank you.