Yur head lah... of course they had routine training flights. If
dun fly then wat, sit inside weather shed and let it rust ah?

You dun even have to be in airforce to know that, just ask those
poor people living near Tengah AB... wonder how they can stand all
that noise.
Most probably when the replacement fighters (euro, F15 or rafale)
arrive, F5s will be scrapped. F5, like A4, are more of bombers than
fighters, poor manouverability.