I shave against the grain with a DE and get ingrown hairs. I have just recently switched to different products. I dont think using a straight opposed to a DE will make the difference in ingrown hairs. Im really not sure though, I have never used a straight razor. i just bought a Revisor set from "Uthed" and will try it as soon as I get it. Hopefuly a straight razor gives me the close shave I am looking for without the ingrowns.