That's ok Monk just putting it out there! Appreciate you offering your experiences with these devices to me and the rest of the forum! I thought it was interesting but felt no immediate need to acquire it!
Drawing is a life long practice and must be pursued on a regular basis to maintain and develop the educated hand/eye coordination and design sense to achieve success! It is a constant learning process!
Spirals in Nature
https://www.resonancescience.org/blog/The-Morphogenic-Field-is-Real-and-These-Scientists-Show-How-to-Use-It-to-Understand-Nature?fbclid=IwAR31LgCyqEMY7SZK9oJNGwDGqIP3sdlQQ6BycTvry8SkWCz-3ejIBGInFEU
New Graver Sharpener Ha!Ha!
https://www.balabella.com/products/pro-knife-sharpener-with-4-whetstones?fbclid=IwAR3j0wnd-sz67n2qTB8UgLW0Oi03g5TfHvEW71XRrt40bV1crqzskB5uacQ