Baaron DC
Baaron DC will definitely be a good choice for a pen spinner of any spinning level.
It is perfectly balanced, does exactly what you intend to do with it.
It has marked center and ends, which makes learning of new elements even easier.
It is long with huge working space, which allows you to make mistakes and fix them on the fly.
Momentum is awesome. It’ll be hard to find another so light pen mod with such a great spinning ability.
And weight, of course, makes it even cooler, because you can easily perform all kinds of tricks with Baaron DC.
But I don't have pen mods
I have already learnt the fundamental tricks and a couple of linkages.