I've been doing this for awhile now but no matter what I do, I can't get even close to a BBS under my chin and my jaw line. I've tried going WTG, XTG and ATG . By the end of the shave I've usually over done it and gotten major irritation on those places. Under my chin you can actually still see stubble after I'm done. I usually use a Merkur HD or Slant with Wilkinsons, Personnas or Derbys. I shower before I shave and either use Proraso Pre/Post or Shave Secret before lathering my soap or cream. I also have a patch right by my adams apple that I can never get close. Any suggestions?