My permit should be here any day, today is day 7 of the 7-14. That being said I will carry +1. I think this is a training and equipment issue.
If your gun makes you nervous, I think you should choose a design that does not. I am not comfortable with striker fired pistols in general, so I don't have one. I am comfortable with hammer fired pistols with a thumb safety/firing pin block, that is what I like and that is what I will carry. With one in the chamber! With practice you can sweep the safety on the draw and loose no time at all. It just takes practice, and knowledge of your equipment. I would be nervous +1 with any striker fired pistol (not just a glock) especially one without a safety. Many are not, that is great, but that is why there are different designs.
No one platform is the end all and be all, that is why there are multiple platforms and multiple variations of each platform. You should choose the one that works best for you and makes you all warm and fuzzy, and then practice! But I would not feel comfortable with any gun that I could not confidently carry +1, you need to be able to react NOW with one hand and no delays (and pray you never, ever even have to even produce the weapon).