keeping both eyes open takes practice but a good training aid is to cover one eye. an example: I wear glasses so I took the cloth i use to clean my glasses and covered my left eye. My mind reacted like i had one eye closed. Every time I went to the range i did the same trick until one day i noticed it was a default action to have both eyes open.
Here to help
Jacob Rascon, (aka) Pennys Dad
CALGUNS Shooting Sports Association.
1. Blessed be the LORD my Rock, Who trains my hands for war, And my fingers for battle 2. My loving-kindness and my fortress, My high tower and my deliverer, My shield and the One in whom I take refuge, Who subdues my people under me.