Just a small tip for extending the life of those tips. I've found that if you get some super glue place a drop on paper and dip your nibs tip into it, let it dry and repeat a few times you can greatly increases longevity of them. I will also note I have plastic sheet over my drawing surface.
small drop and dip... dip dip.. please don't glue the nib into the pen.
It can be risky. Super glue can easily get in your stylus' internals and mess them out if you don't pay attention.
They best way to reduce drastically nib consumption is removing your tablet surface sheet (if your tablet can have it removed. This usually excludes touch models) and sand down with fine grain sand paper the "paper-like" finish, which is responsible for the nib consumption.