Jango newbie, I do have a bondo spreader, but at the time I couldn't find it, got impatient, and just used my finger.
The belt sander ate away all the excess bondo anyways.
Laan, thanks bro! And I haven't forgotten that shirt. It'll DEFINATLY get done next week, or that building's going down in flames. :wacko 
Am I being a little too trigger happy with the pics? If I am, just let me know. I'd just like to document the steps I'm taking so if others would like to try this, they know what I did.
And if anyone's wondering, I screwed the MDF to the table from underneath so it would stay put while I hacked at it with the belt sander.
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