Should I replace Atlas switch machines with DZ-1000

Is your switch screwed down on road bed or the table top? If so, it my be screwed too tight...this would prevent the throw bar (the piece that the points are attached to) from completely returning to position.

I have 26 Atlas switches on my layout and am using the stock switch machine. They are not the strongest "machines" but have not experienced any derailments because of faulty performance.

16 Atlas turnouts and switch machines here.  They work fine... but, I don't like how delicate the switch/turnout connection is... I run things pretty hard ...and, I do have to make adjustments occasionally.  I just installed my first Tortoise Switch Machine a couple of days ago.  It's Rock Solid!  I will convert them all to Tortoise.

I did so that I could wire them for anti-derailing capability. They have been flawless. YMMV.

The switches aren't screwed down. I observe the weak spring action when set on any flat surface. My switches are 4 to 5 years old and have never been used. It seems like the springs get weak with age. The switch machines are very difficult to work on. I don't want to be opening or replacing them on the layout.

I know the Atlas switch machines are tricky to work on. Once you take the cover off parts can fly -a ll- over the place.

Go with the switch machine you feel comfortable with and get the issue behind you. This is suppose to be a "fun" hobby

Thanks. I just now ordered 2 DZ-1000 to see what they're like.

Try the DZ-2500Cs smaller profile than the 1000s.

If you don't mind getting under your layout the Tortoise switch machines are the best way to go. When viewed from above the only thing you see is a fine wire engaging the switch throw bar. They are easy to wire, and after you do one installation, the next several will take about 20-30 minutes each. I have used them on my layout since 1987. They are American made in Illinois. They are bullet proof. No crappy linkage. You will never derail with the Tortoise unless you throw the switch the wrong way. No more ugly Atlas switch machines.