Much Needed Options
It be nice if when you click on Model Packs and edit one you, where the list of items added are - beside them you have an option to "delete" or an "x" to delete them from the list.
Also an option to mark as unavailable for the whole pack would be good so we can continue to build upon a pack in silence.
Move the Seller Support sticky tab to the right slightly lower so we can read the pack drop down information on the "edit items" page.
i7 -2600 CPU @ 3.40GHz - Windows 7 - 8GB RAM - Nivida GeForce 420 GT