Rule of thumb is to wrap them when they have a nice PC coverage all around. That being said I would experiment with wrapping papers and environments. Many of these wrapping paper suffocates the rind and ammoniate it, causing too much geo to propagate and causing the PC to recede. This can give you loose skin, undesirable aroma and bitter flavors. Many cheesemakers choose not to wrap them at all until storage. You just move them in an aging container to a normal fridge (at the same time you would have otherwise wrapped it) and then turn them every day or two, using your hand to tap down the growth, making it nice and dense.
My best advice is to make a single batch of several identical cheese wheels (same shape, size and weight all from the same batch). Then, wrap in different papers (or do the no wrap method) so when you get to ripe period you can compare them apple-to-apple side by side and see which method works best for your recipe and aging environment. For me the 3 best results are with perforated cellophane, with no-wrap at all, and with Expaco paper.