Well, I think you can spin as many plates as you want and pursue as many passions as you want, if you do that to forget a girl or to distract your mind from girls then your mind will be fvcked up anytime soon and you will fail.
This is me today: I spent my whole afternoon doing my passion. I come back from 1 week of nice time with friends and girls and tonight I cannot sleep because I am back home and I am thinking about my ex, imagining her being kissed and banged by another guy during NYE and consequently it's almost 1:30AM and I am still awake writing on SS.
You can have 365 plates, but if one will go missing or busy you will be back thinking about your ex, your oneitis or being BETA with your current GF. It's like taking shots of heroin and missing one shot will take you back to your feeling of emptiness and you will lack your daily dose.
Those are techniques and postures but they are here just to make the good mindset easier to reach.
The theories behind those techniques are the Abundance theory and the Great Catch theory. The key is to think differently about yourself and as stated in the Book of Pook (kill that desperation) and in Rational Male (plate theory), the goal is to start thinking that your are the Great Catch, whatever you do.
So basicaly, you can drink beer and ride your Harley during the whole day, as long as you THINK and genuinely KNOW you are the Great Catch you will be OK. It is just much easier if you build a high SMV, have valuable passions and a flock of chicks running after your a$$.