the answer is both or neither
but as 'rilla has suggested initially the way to go is always tagg. You cant learn to be lagg until you know what a tagg player is and how they work. Once you figure that out the lagg part becomes more understandable and easier to do. Then you can simply mix between styles moiving up the gearas when you need.
Yeah its been said before but thats how it works.
And you only start getting laggy when you reach 100nl imo (and then thats only where you begin)