Too much 'line in the sand' ball swinging; I guess that excess testosterone vis a vis hair loss thing is true! :lol:
Like most of life, everbody is right, but in diffrent degrees and circumstances.
Me for example: I went to a pro, got my hair & piece cut, but it didn't look right until my tweeking & products got applied. I also trimmed down my back & sides. And, there's more I have to do on my 2nd piece, which I'll post in another thread. My circumstance required both me and a pro.
Diffrent styles lend themselves verbatim to DIY; others, the exact opposite. Then there's the in between. Again, everybody is right.....just speaking from different Points of view.