Doesn't my sight flash memory give me sufficient feedback to know if I had a good shot during dry fire?

Based on all the research we have done so far, no, it does not. Even top ranked shooters have been documented to miss targets where they had visual sight confirmation on breaking the shot. The underlying issue appears to be slight trigger control issues which occur within 1/100th of a second of breaking the trigger. One particularly advantageous training regimen is to set up four auto-resetting steel poppers on the range and one set of live fire (one round for each popper). After shooting all four rounds, unload and show clear the pistol and then use your SIRT Training Pistol for 5 quick sets. This protocol is advantageous because you are quadrupling the amount of trigger pulls and working on a plurality of skill sets, such as your draw, presentation, transitions, trigger prep, trigger break, etc., then instantly reinforcing these fundamental skill sets with live fire. When doing this kind of regimen, shooters are almost always amazed at how many misses they make on the steel targets. When front sight focused shooters miss even when on their front sights, the failure point is generally trigger mechanics which can be addressed with the SIRT Training Pistol.