Can I install the Baro in a TEE? Field Controls says NO

I'm just a little unsure of the terminology here. The horizontal take-off of the Tee I bought has no crimps in it. It appears that it is the same diameter as the RC baro, I tried forcing the damper into the horizontal take-off, wouldn't go, gave up, took beer break. It wasn't until I saw this post here on the site, someone mentioned having them bump out the take-off.
barometric damper

I have already dropped the Tee and baro at Olympia, may be too late to change, wheels already in motion. I did ask them to shorten take-off an inch,, may still be slightly longer than the 2 inches you show,, will see when I get it back.

If you use a Type M baro in a normal T you do not need to cut the T.

I like the way your stove pipe matches your stove.

That brass estruceon is a nice detail too!

I have had my type M baro mounted in a bullhead tee since 2008, and it works fine for me too. As has been said before, all the factors which effect draft at your location will determine how well it works for you. (chimney height, type of stove, flue dimensions, etc.) You can always try it, and then change it if you don't feel that you are getting the performance you desire.