I loved the Poliwog so much that I had to get a Dodo too.
In one way, the dodo is better. Due to a small difference in the design of the lock, the Dodo stays closed much better and doesn't have as much resistance to the final closing as the Poliwog.
The biggest problem with the knife is it is pretty much impossible to close with one hand. My fingers grip on the G10 when I try to move the ball. The ball also sticks in place when the blade is open, so not only do I have to work with the g10 being in the way, the ball has an extra force required to move it. I would try enlarging the opening for the lock, but the little screw that holds the spacer in place is really close.
Two additional problems were little sounds, not major defects.
The first thing I noticed is there is usually a click sound when the blade opens and the ball rolls past the sharp hump that the ball pushes against to hold the blade closed. When the ball goes past this hump, it is switched from being pushed towards the finger groove side of the handle to being pushed towards the spine of the handle, causing the click sound. Sometimes the sound isn't there, depending on how slippery or sticky the mechanism is at the time and how fast the blade is opened. The Poliwog doesn't do this at all because the lock is designed a little different, with the ball always being pushed towards the spine of the handle.
A second issue was a slight creaking sound at a few points, mainly the same point when the ball clicks (I think that's the "deepest" point for the ball). I took off one half of the handle, and I saw that the inner spring (not quite visible from the outside like the outer spring is) was slipping into the most rearward shaft that onlt the solid piston is supposed to go in. One or two loops of the spring would slip in. This was easily fixed by adding a small washer.
In one way, the dodo is better. Due to a small difference in the design of the lock, the Dodo stays closed much better and doesn't have as much resistance to the final closing as the Poliwog.
The biggest problem with the knife is it is pretty much impossible to close with one hand. My fingers grip on the G10 when I try to move the ball. The ball also sticks in place when the blade is open, so not only do I have to work with the g10 being in the way, the ball has an extra force required to move it. I would try enlarging the opening for the lock, but the little screw that holds the spacer in place is really close.
Two additional problems were little sounds, not major defects.
The first thing I noticed is there is usually a click sound when the blade opens and the ball rolls past the sharp hump that the ball pushes against to hold the blade closed. When the ball goes past this hump, it is switched from being pushed towards the finger groove side of the handle to being pushed towards the spine of the handle, causing the click sound. Sometimes the sound isn't there, depending on how slippery or sticky the mechanism is at the time and how fast the blade is opened. The Poliwog doesn't do this at all because the lock is designed a little different, with the ball always being pushed towards the spine of the handle.
A second issue was a slight creaking sound at a few points, mainly the same point when the ball clicks (I think that's the "deepest" point for the ball). I took off one half of the handle, and I saw that the inner spring (not quite visible from the outside like the outer spring is) was slipping into the most rearward shaft that onlt the solid piston is supposed to go in. One or two loops of the spring would slip in. This was easily fixed by adding a small washer.