Hello all. Just joined the site. I recently purchased a ruger lc9s for personal protection and for backpacking. Its my first compact handgun and I'm adjusting my technique from shooting my gp100. Im older and my vision is affecting my accuracy. I keep my glasses on and the front sights all but disappear with anything 5 feet past the barrel in perfect vision. I take my glasses off and the sights come into view and anything past that fades out. I've asked several local gun shops about crimson trace and about half say they're junk and useless in a stress situation, the other half swear by them. I'm looking at the xs big dot sights as well. Could I get pros and cons on both big dot and crimson trace? The factory sights need to go in either case. Thank you.