If it chrono’s over 366 FPS with 0.20 bbs (average over 5 shots) you’ll be fine. Those 3 however will not meet that, and they will send you a nice letter asking you to do one of 3 things: ask for appeal, send it back via ups (+$100 to do so) or abandon it to be destroyed by cbsa
I’ve got a gbb sitting on option 1 now
shitty cold warehouse testing conditions here in January Canada left it shooting at ~350fps when it should with the long barrel be +380fps as it was tested in Taiwan back in November.