I noticed when I booked my award trip that my middle name Christopher had been crammed into the first name box and cut off to Christo (the artist). They must have added the middle name box later since it is empty but won't let me fill it in.

Today I printed my boarding pass and Christopher is now Chri. I called Delta to ask if I should approach the TSA with it this way and they transferred me to a desk where they checked me out, said they corrected it, and then sent me an email of the amended reservation which now shows my full name in Passenger Name field. However the flights no longer appear in My Trips so I had to search for them by locator.

So I check in again and my boarding pass still reads Chri for a middle name. Should I attempt to get past TSA with it this way, go to the counter or reprint at a kiosk? Just asking. Thanks.