1) Will this create a training scar of coming up off the sights in order to see the 100m/s laser dot? I understand distance will dictate sights vs physiological aiming, but I worry this practice will hardwire me to look at the target immediately after every shot regardless of distance.
At typical defensive distances, you should be focused on the target anyhow. The body's natural reaction is to focus on the threat, and training counter to that reaction is not productive. If you use the LT-1 at a typical defensive distance, it will actually reinforce that habit - a good thing, in my opinion. Focus on the "threat", bring the gun into and parallel with your line of sight, and see where the laser dot is relative to where you were focused.
Save the shooting with sights for live fire on the range, and then only at distances/target sizes where you need them.
2) This is a dry fire concern in general. When I practice dry, what's the best way to handle a SA or striker fired semi-auto? Should I fire one, pause, cycle? Or shot one, cycle, shot two.
I recommend that after each "shot" that you do the correct thing when confronted with a failure to fire: tap-rack. Press the trigger, get the no fire indication, come into high ready, tap-rack. Extend and "shoot" again, repeat the process. You're getting a malfunction response rep with each failure to fire. Think of it as a high-tech dummy round drill that you can do in your basement.
It should be pointed out that any dry fire routine should be used sparingly, as a diagnostic aid and not as a substitute for live fire. It's a great way to verify that you're not steering the gun at the instant of ignition, but understand that without the recoil and requisite control of a live round you're not closing the loop of the exercise.
I teach my students that a half-dozen, perhaps a dozen max, repetitions per dry fire session is plenty. If your first few "shots" show that your trigger control is fine - in other words, the laser dot is where you expect it to be - then you can finish the session then and there. There's no benefit, in my opinion, for doing any dry fire beyond the point that you've verified the physical skill.
