I'm debating between the v2 (LEM) and the popular v3 (DA/SA). I'll use this gun for personal/home protection and range practicing. Which's the more practical and popular choice? What's your reasoning and experience? The v2 (LEM) has a constant trigger pull of 7.3lbs. How about the the v3 (DA/SA)? 10lbs for DA and 5.5lbs for SA? In emergency situation, I think the LEM is easy to shoot. BTW, H&K also has v4 (LEM) which is 6.2lbs. Is 6.2lbs on the light side for personal carryon trigger pull? Please share your experience and help me choose.