It would also be nice, if at some set high level...maybe hero, maybe just X levels above when you could have found it, there is a random chance that can trigger if someone has not found a particular sleek that will randomly re-roll that one for them.

It can echo to them, or maybe tie it with detect artifact where the archmage send them a tell to let them know that the one they had, but never found, has shifted with changes in the veil (or some other mumbo jumbo) and will not be found elsewhere, primpting them to go back and re-search locations they may have already checked. It would not do it if a requirement has been met where they have found retrieved thier wand.

The benefits of this, are that a hero mage that can't find a sleek knows there is a chance at some point that one of the places he already knows might end up being his spot, and keep him from deleting perhaps. It promotes exploring still, since people still check places the first time, this will just have them go back to places again, and it still might go somewhere they have yet to explore. If anything, it helps the choke-point issue, as mages may go back to a common place again to give hunters a chance to catch them there where they otherwise would not have been there.

The new attunement edge will help the people that find thiers, but don't like the spot, but I could see where some people will flat out refuse to check a spot they don't like so they don't fill the trigger to stop the auto-roll...but I did say above that "and retrieved" so that may need some discussion to see if people would be allowed to leave the wand they do find sitting so that they can choose to wait for a random re-roll at some point in the future, simply because the place they found theirs is one of those places that is less than ideal for their class.