there are no patterns.
i even checked it.
When u try to enchant the client sends the server
- the index to the item
- the index to the stone used
- the indexes to the 3 "eyes"
- money u want to spend(4bit)
the last of the 3eyes and the money are currently always empty, but the server already accept them. But the information, on
where u placed the stone is
not send to the server