The subjective ones should be left alone, that's the problem. We can argue about stuff like that in the pub after.
They're getting the ones wrong that should be obvious though. Off side should be easy. Not someone's toe, or elbow.
If it's level, give the goal for **** sake.
with off side i'd say give the attacker maybe half a body width start, (no arms or legs) because freeze frame isn't that accurate.