12 get in for every group and there is 4 groups a year so 48 total. February group is already full and May probably mostly, still leaves September and November groups that might be largely unfilled. We could guess that there is still around 24 spots unfilled this year. There was around 20 invited for todays test. Based on this lets guess they test out maybe 20 per month. They'd need to select 20% of applicants from these tests over the year. Even more to have buffer for people failing later or not signing. Thats in theory way better odds than 12 to 400 (=3%). BT is gonna need to fill these slots somehow if they are going to receive 11 more A220s in 2 years or so. Also I got the feeling some left the test incredibly quick so either they very real smart or gave up ¯\_(ツ)_/¯