I'm upgrading my current duty Glock 17 to a Gen 5. What's the best slide length for duty use with a light? Now we have the 19X, 17.5, and 34.5, is the length difference an issue, considering I'm using a TLR-1, which sticks out past the muzzle on the 19x and 17.5? Should I just run a 34.5? Or will the shorter length of the 19X make for a handier duty pistol? I'm open to all possibilities, but I only want to buy one Safariland 6360.