Looks like you're right.. not needed for new 22's.. The SS door though looks like an improvement and can be ordered separately.
i'll send in my resume :wink:
http://www.virtualweberbullet.com/partstrouble.html#tab
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Damper Won't Close Fully Because Tab Hits Charcoal Grate (22-1/2" WSM only)[/FONT]
[FONT=Verdana,Arial,Helvetica]Editor's Note: Beginning in early 2010, owners have reported that this design issue has been fixed in new 22-1/2" WSMs. [/FONT]
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The 22-1/2" WSM is designed such that a damper tab may hit the charcoal grate when the damper is in the closed position. This prevents the damper from closing fully.[/FONT]
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Click this photo for a larger image; the problem area is circled in yellow.[/FONT]
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The easiest solution is to break off the offending tab with a pair of pliers. The three remaining tabs are more than sufficient to control the open/close position of the damper.[/FONT]