You might think it would have been better to have said that when “one pound falls 90 degrees, it causes one pound to shoot upwards 30 degrees”, but that would have removed the information that five weights were involved, so it had to be four weights plus the one, and he liked to obfuscate otherwise it would have been too clear.
When he suggested that this advice would be understood by a great craftsman, I think he meant that it was possible to grasp his meaning if you recognised that at first sight it was impossible, and therefore you would have the mechanical knowledge to realise it, and work out the real meaning, and he was also informing us that those two angles were an important ingredient in the mechanism. Such a strong mechanical advantage would certainly ‘shoot’ a weight upwards ‘lightly’.
PS - Some people think I have never published any clues, except those on www.theorffyreuscode.com but you may be surprised to learn that I published this interpretation in a blog dated 14th October 2011, and the clock in September 2016 and many others at other times. It’s amazing to think I published this interpretation almost ten years ago and I see people are still trying to make four pounds shoot upwards by causing one pound to fall the same distance! I’m beginning to wonder if it’s worth publishing any more until I’ve finished my wheel. Until you see the final design the clues are largely meaningless and I’m not going to publish any of the really useful ones until I’ve completed my own wheel! I apologise if this is disappointing, but I hope that it won’t be long before I finish the wheel and I can publish it all and await the reactions.