Thanks for the input fellas. I'm not sure it'll have a big impact with pistol shooting since a slight shift to the left to aim left eyed feels natural since it's how I've been shooting forever. Was more curious about the rifle shooting really.
A Google search turned up several different articles with different techniques and as stated before, I'm very new to the sport. Taking most of what I find on google with a bit of skepticism, I figured the amount of experience on the forums here would be an outstanding resource to tap into. Two articles I'd read said cross dominant shooters groups
tend to be larger, and high left. Which seems to be true with my groups for now as well.
I've probably shot more in the last few months than in my life, but have yet to participate in a match due to work schedule. I'd seen quite a few people quote "practice doesn't make perfect, practice makes permanent" and wanted to break any bad habits or poor technique caused by cross dominance asap. And possibly find a training technique to help reign in my groups a bit as well.
I frequently train with a friend that got me interested in the sport that's helped with other aspects of my technique like grip, draw and reloads. He thinks the cross dominance is no big deal, and says really the only time to have both eyes open on the rifle is short range targets and that I wouldn't need to learn shooting left handed for that specific situation. It's something I'll have to check out next time I go to the range.