Okay, I'm not going to read through these posts. But there are two things you need to know. First, the strap is not necessary to seal the mask. Put the mask on without the strap, inhale through your nose, and the mask should stay in place as long as you maintain the slight vacuum. If it doesn't, it does not fit, and you need a new mask.
Second, the split straps of a mask are both meant to go above the ears, not below. The split is to go one over the top of the notch in the back of your skull, and one below.
Wearing a hood should make no difference in the fit of the mask, unless of course you get the hood under the mask's seal. Be sure to get all the hair away from these sealing surfaces too.
These are things that should be covered in a basic scuba course by your instructor.
SeaRat
Second, the split straps of a mask are both meant to go above the ears, not below. The split is to go one over the top of the notch in the back of your skull, and one below.
Wearing a hood should make no difference in the fit of the mask, unless of course you get the hood under the mask's seal. Be sure to get all the hair away from these sealing surfaces too.
These are things that should be covered in a basic scuba course by your instructor.
SeaRat