I'm a player returning after a break, so if my information is wrong, please correct me.

As I understand it, using macros with GCD abilities is bad because you cant skill queue and lag and all that stuff, but what about non GCD abilities?

Like could I safely macro Mug, Internal Release, BfB and all those to one place safely and just hammer on it in between GCDs? Or macro the abilities to other GCD keys and they'd just get used whenever I hit the frequently used abilities?