On speed, 1,500 feet, in the middle !!!
In my airline days if you didn't do that on a check they'd have a real close look at you. It is so important ..... if you did regular hard landings then they'd also have a look at you.
You do need to practice firm landings - not a joke - all we ever seem to do is go for the greaser but in bad weather, wet runways, crosswinds etc it really is a bad thing to do - I used to deliberately practice a firm, not hard, landing - one in every four ...... you need to positively change your technique in the aforementioned conditions ever so slightly to avoid the automatic greaser mode