Thankyou for putting these out Bio, your write ups help me to understand what is going on in the rs world!
I have been listening to the podcast that jagex makes
I was a little confused to start off with, as to what an elite skills is (This may be because I wasn't around when it was released). Its a new skill to be released that is a combination of two normal skills.
From what I can work out it sounds like invention is a combination of smithing and crafting, meaning that if you want to get 120 in Invention, you will have to already have 99 in each of the base skills (I Maybe wrong in this).
As an example for something you may be able to do, is break down a maple short bow and rebuild it so that it will have an improved function, such as faster shooting
There will also a mastery meaning that the best way to level may not be to go and by 10,000 maple bows break them down and make them into something new. It will also include how much you use that new item
Im surprised there is so much information out about this so far