On the lead thingy. It has something to do with the " hexagonal" rifling. Something about gumming up , blah blah blah. You can get an aftermarket barrel if you have to shoot lead. The glockmeister site has a lot of options. I like that site, anything you could ever want for a Glock. Like has been said in this post, they are both good guns, you will not go wrong with either. I hated Glocks until I bought my model 23. I only bought it cuz I got a good deal. After I shot it I loved it. Good luck and let us know what you choose, and how it shoots!