Conversion basically allows you not only to convert additional attributes of your gear to another gear but it also allows you to convert both pearls and pearl slots.
Let's take a deeper look into what I mean.
To get to the convert menu in the game, simply go to the armory. You can do this by either clicking the Armory building on the main screen of the game or by going to your league and clicking the league armory button. Each way will take you to the same place.
After you get to the Armory, look to the left and you'll see different tabs, click on the tab that says "Convert". Here is where all the magic happens.
In case you're new to converting, I'll offer a brief explaination. There's two slots. One slot is for the item you want the stats / pearls / holes to go into (the slot on the right). The other slot (on the left) is for the item that is giving up it's stats / pearls / holes to the other gear. One important note though, both gear must be the same kind. Hats can only convert into hats, rings into rings, and so on. Also, if you convert into a unbound item, it will become bound.
Now, to the fun stuff! After you insert the items into the right spots, simply press convert and a menu will pop up. It looks like this:
By default, both options are checked. What exactly do these options mean? Well, if you have both checked like in the image above, then everything will be transferred to the new gear including gear level, pearls, attributes, and so on.
If for some reason you don't want everything, then there's ways around it.
If you unclick both options, then no pearls will be transferred. However, level and attributes will.
If you choose only the first option, like in the image below, then only the first 4 pearls will be transferred, sub-pearls will not be. Level and attributes will also be transfferred.
As you can see. Only the first four pearls were transferred.
If you only choose the second option, then only the sub-pearls will be transferred.
Again...Only sub-pearls were transferred. 4 pearls were left behind.
And if you clicked both options? Well, you guessed it, all pearls are transferred.
For the most part, having both options checked works for most people but there's also some times where you don't want it checked. Many players choose to have PvP (Game House) gear and PvE (Boatyard) Gear. They have different pearls for the gear but still need to switch levels around. Having both options unchecked is the best way to transfer only level and attributes without effecting pearls.