Uploaded the PDF cut line on this link. Removed some of the slits as with thinner vinyls slits are not necessary with thinner Mill vinyl. Thicker vinyl may require slits.
I stretched mine some too. I couldn't remember which way so I didnt apply that to the one I uploaded. After looking at yours I think some. I started with the center corner (middle) and pushed out with the wrap. Did you try the wrap for the controller? batteries?