LEM only on HK for me. It's a one trigger pull gun that way, with a 'long' initial take up, so it eliminates the burden of training for two trigger pulls. The DA pull on their newer DA/SA guns is abominable, (HK45 and P30). Way past the the common "it's a safety feature" mantra. It borders on ridiculous.
You also get second strike capability and the ability to ride the hammer while holstering --- if either is your thing.
Edited by Samgotit - 9/21/11 at 6:16pm