Whats wrong with it besides it is Canadian.
There is no RCAF.
Ask eagl. However, I assume they are just as effective in training as in combat and since both sides use them it is probably good to train with them when doing dogfighting practices.
When he is rolled inverted, it may fool or disorientate an enemy? It had me thinking for a good couple seconds, which is a huge amount of time in jet combat.