i am for the most part right handed....i was left handed as a child but a series of sucessive left arm injuries turned me into a right hander
i am left eye dominant. i have been using a right hand hold and both eyes open, and i am ok with it. but recently i put an adheasive white dot on the right side of my shooting glasses. its about the size of a nickle. my shooting improved markedly. i still keep both eyes open its just that my right eye is only used for peripheral vision. i plan on, over time, reducing the size of the dot and see if i can gradually work back to both eyes open and maintain the left eye accuracy. if may help you too.
I'ld rather die standing than live kneeling