I can't say whether that specific one is any good; its function is the same as the old Girvin Rock Ring, Blackspire Big Ring Protector or QBP's Tooth Fairy Engagement Ring. I had a Tooth Fairy and it did what it was supposed to. I will say that I though John Heim was a pretty resourceful fabricator and that his 3-Guide was a cool product.

If you mean using the Lee Likes Bikes info, yeah - - just be sure to credit him.