Singlespeed & Fixed Gear - OnGuard Lock Identity Crisis

I purchased an OnGuard lock yesterday from Sunrise Cyclery, who were fantastic do deal with. The lock, however, seems to have a bit of an identity crisis -- it's labeled as both a Pitbull and a Bulldog. I plan to take off the plastic guard and create what Sunrise advertises as a "Bulldog Mini Thin Crossbar," the lock that many have found for cheap through Amazon.

https://shop.sunrisecyclery.com/display/1395/0/
http://www.amazon.com/OnGuard-Bulldog-5015TC-U-Lock-Bracket/dp/B000X0RI66/ref=pd_bbs_sr_4?ie=UTF8&s=sporting-goods&qid=1201134517&sr=8-4

I have the lock in that picture, and I'm not sure you can take off the plastic. Maybe the middle silver part, but that's probably less than 1/8" thick and works as a keyhole cover, which is worth having around in sketchy weather.

I was able to take it off (per http://www.bikeforums.net/showthread.php?t=345418), however mine is bare metal underneath. I have covered it with electrical tape for the time being, but I'll likely create a more permanent solution out of PVC. Now that I know, it would have been much easier to get the "thin crossbar" version available on Amazon.

I dropped my lock in a drunken stupor and the plasic casing cracked off. it's ugly bear metal underneath. I wrapped mine in electrical tape.