I think 70% is more than enough. Combining the fact that the elite level was lowered from 300k to 75k, in this segment, Envato has done a lot for the authors.
I am going to buy a knee surgery soon
Hi vertetblanc! Its best to contact the author directly in the comments of the file you bought.
Not sure whats bothering you, when you work for a company, you receive a paycheck once a month, at predefined time, just like in a real world. You just have to plan better.
You should ask your questions the author directly in the discussion section of the file you bought.
You have to buy new extended license every time you want to include it in a new theme.
Its best to ask these questions the author directly, somewhere in the comments of the file or through his other support channel, if exist.