How Long Should I Let My Eyebrows Grow Out In Between Waxings Eyebrow Grooming For A Guy?

Eyebrow grooming for a guy? - how long should i let my eyebrows grow out in between waxings

Hello, when I was younger (15/16) had very thick eyebrows, balanced (never enough in my head, anyway). Today (I'm 20) seems a little thinner and / or are now well and even grow. The result is that when I wake up in the morning, the hair is everywhere, and whenever I am out of the shower, my face is different. A few months ago, I burned the hair on the face while working on the grill. He turned around to grow well, but I recognized some time between then and now, it seemed better. I think it's because the hair a little shorter and blunt.
So someone give me the substance of what I need and how do I go to cut them? Tools, processes, such asten to do so would be appreciated. Besides, I know eyebrows are, after they reach a certain length, it allows them to cut their hair to grow indefinitely all? Would affect the growth cycle?