Touche'
Please forgive me as I have delved into a kettle of the very proficient in regards to frames/actions/accessories and the resultant proper way to handle/carry.
I will give myself some credit for learning a few things here today.
Still liking the G's, and thinking that the environment that I exist in doesn't require old west gun fighter skills of draw and shoot, thus the empty chamber carry on my behalf. When it does, I'm moving out.
Glocks, and almost all modern striker fired pistols, are plenty safe as long as you keep your finger off the trigger until you're ready to shoot (4 rules are always in play).
Also, a good friend and I both carried on empty chambers for a few weeks when we had freshly received our LTCHs -- it made us feel more comfortable, so that's what worked. After a couple weeks, I felt comfortable enough to start carrying loaded. But, yes, the other posts are correct that you really should carry on a loaded chamber since that extra second to rack the first round in might not be available.
With modern semi-autos (especially striker fired like Glocks, M&Ps, Ruger SRs, FN FNSs, etc.) you'll just need to keep the trigger covered.
Some people even pocket carry a Glock 26 - a little heavy for my tastes - but they use a trigger guard cover like the one from raven concealment and it is very safe. However, just pocket carrying or carrying in waistband a Glock without some type of trigger cover is just a recipe for disaster.
p.s. I like this runaway thread.
... I'll add one more thing: BACON