So I'm new to Glock. I was debating between a 17 and a 45/19x. Lo and behold, the 47 just came out, and I thought why not. So, I'm looking for a recommended aftermarket 19 slide to give me the 45 whenever I want to run that. I saw something on here about Gen 4 slides not being 100% compatible. Then saw something else that basically said it's fine as long as you get a backplate. Thoughts, advice, perspectives, and any other encouragement or ridicule would be greatly appreciated. Cheers.