I trimmed for a while before I shaved completely. when I did shave for the first time it was good, but then the 2nd time I went against the grain and it hurt soo bad...lol
but ya, I just go by how I feel. right now though I am just growing a triangle that goes along with my "V"
also, lotions break me out whenever I put someone I shave, so I use baby oil

(if that helps any)