I can't remember if I told my REO and TSA story yet, so I will just repost.
I had no problems with REO in my carry on luggage. Placed into the bin with my shoes, in a separate baggie, I had the REO biz card and also the instructions I received when I purchased, just so it could be identified as a vaping device. With my IMRs in a nice plastic battery case with rubber band around it for exta security.
Flew out of NW ARK airport in Fayetteville, AR, the one they moved for Walmart ......so I fly out of there rather than LIttle Rock as there are a huge number of flights going out of there, mostly walmart and JB Hunt people.
Had no problems leaving gate area in Detroit either......went thru TSA a 2nd time when my flight got cancelled.
However, on the way back I had problems at Stewart Air Force Base airport, very small place but international airport and customs receving place. They pulled me out of line, for 2 reasons. One was the decals on the back pockets of my blue jeans AND the REO mini. That warranted a full pat down as well as testing my hands for chemicals. TSA lady said to me about the REO "this looked VERY BAD on the Xray" (whatever that means) and then she asked me if I had had problems with it before at TSA checkpoints, since i had included business card, etc. and I said "nope, this is the only place I ever got stopped, and I only include that stuff in case because I feel it helps you identify the item, since not everyone has seen a REO mod before. "
So, anyway, it was all cool, but it did slow me down in the line and thankfully, it is small airport and not a lot of people.
So you just never know who you're going to *get* at a TSA checkpoint, so always be prepared, and have your ducks in a row.
PLAN on being delayed in line, travelling with ecigs, because if you don't you may very well miss your flight, always assume you need more time than you do.
I would have been broken hearted if it was confiscated, since I already had a REO taken from my car (long story, i thought I got it back, but when I went to pick up what police thought was my ecig all they had was a different ecig, not my reo, in the same colors as the REO that I had stolen was.....it was like the greatest most disappointing coincidence you can imagine, right? I get a call "we retrieved your ecig" and then I drove 80 miles round trip to pick it up in the town where it went missng........and it wasn't my REO! I was so ......, since I had described it to them in DETAIL! All they heard was black.silver and they had gotten a black/silver turned in and of course thought it was mine, and it WAS an ecig but not my REO

)
So if TSA had taken my REO that would have been 2 reos I lost. (which I can NOT afford!)