Good tips here. What did you have to file to get it to slide smoothly?Here are some pics. I think they should have done a better job bending the sheet metal wings to more closely match the original heat shield.
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With the stove so close to the wall it was a little tight. There were a couple bolts that needed small fingers to install behind the air control indicator.
I applied the stove cement to the new air control then put it into position with my wife's help so I didn't smear it everywhere.
The heat shield shares bolts with the new air control so don't tighten those down but do place them in the holes while tightening other bolts to make sure everything is aligned and no holes are partially blocked.
My slide mechanism was really sticky when the bolts were really cranked down, after loosening and doing some filing it slides smoothly.
It's probably just the picture throwing me off but it looks like you barely have 7" clearance from the rear heat shield to the wall.