I've done this reward track a couple of times now. It has a number of issues.
The reward track appears in the list of locked tracks ALWAYS, even after completion.
All of the Elonian skins are locked; that is to delete them you have to type in the skin name. I thought ANET was getting away from this annoying behavior.
Since a large percentage of the drops are from one set of weapons the repeatability of this track is minimal. Once you get all of the skins there is essentially no reason to redo it. A second drop of a skin you already have is useless, and because of (2) is annoying to delete.
Please rework this track to drop a much wider variety of loot types (there is a lot to choose from in the Crystal Desert), and actual weapons that can at least be salvaged. And fix the lock bugs.