Useful information and links for AcheAge
Tutorials, ArcheAge Item Database and Skill Calculators
This is a great site to see what the stats are for all the standard weapons and armors. The new tempering burnish in the cash shop can do 5-14% so you divide your items dps by the number in this database to see what your percent is. Then you can buy the flux from the cash shop to remove the temper to try again.
Note many items purchased from the AH already have a temper they may not be that great so check your tempers!!