I used the HiMaxx motor on my Mini Funtana, stripping the spur gear was an everyday occurance. you can stop some of it by tightening up the mesh a little, but it only delays the inevitable.
I currently have the Mini Edge, which I will use the B20-15L with 4:1 gearbox. The only reason I'm using this motor is I have one just sitting here. I also have an A20-20L that is scheduled to go in my Fliton Prodigy, if I ever get it
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