drwhitson I just ordered your Triaxial also. Who else do you recommend for challenging puzzles?
drwhitson This was and continues to be a great puzzle for me. After i learned how I am now trying to see how fast I can do it. It requires some dexterity that is easier when it is raised, so I assemble it on a 2 inch thick book laying flat. Thanks for this. What else do you have that is just as challenging?