Anyone else having this problem when trying to create a helmet?

I’m currently trying to recreate my university team, and we have a very distinct W on our helmets, but whenever it gets to the top of the helmet, the image gets warps. I’ve tried mirroring the image. I’ve tried slicing the image in half and mirroring it that way. I’ve tried doing two separate custom images on each side. Nothing seems to work. I’m not sure why it can’t keep a strait line on the top of the helmet. Anyone have a fix for this?