Had both a 34 Gen 5 MOS and a Model 17 Gen 5, non-MOS.
Trigger pull and mechanical accuracy were pretty much same same. The main difference is the 34 has a bit more weight up front to lessen felt recoil/muzzle jump. It's not a lot but shooting them side by side it's definitely a softer feeling recoil.
Fwiw, I no longer have any Glocks and have replaced them with S&W M&P 2.0's, a 4.25" model and a 5". Nothing really against the Glocks, just personal preference. They fit my hand better, and while you can always replace a Glock trigger I liked the OEM flat triggers on the new Smiths better.
