I think the system as it is now works well, but with an addition of "extra wand location edge" it would be easier on those who struggle to find the wands.

You may want to consider adding 2 amber and 2 sienna locations per character, since personally I feel having aura and shield is a requirement to do anything in relation to PK as a mage.

Extra edges would increase it to (potentially) 3 amber, 3 sienna and 2 black. If you cant find your wands now.. you gotta rething your strategies when it comes to looking :)