One of the IPS staff members (Matt) said that he would look into a resolution for this, but the topic it was mentioned in didn't have much to do with the main issue, so I decided to create the topic in here.
Simply put, the parent skin, when recached, goes through every child skin as well. The problem with that is that, if you have 15 or more child skins (as I do, with customized NBA team forums) and your PHP memory is set a bit low (I believe), you'll run out of memory before it finishes. Can there be a way to recache just the parent skin?
Also, it would be nice to be able to recache multiple skins, but not all of them. Using a drop-down menu, you can select just one, or select all. Being able to hold CTRL to select multiple skins would be great, but not as important as what was mentioned above. :)