Interesting...
And I can understand your comments - but -
I was told by about 5,000 people " You have to clean the vanes with acetone before you glue them on" ...
I could give ' not cleaning them' a shot but I think I' ll wait - I want the ' pro' to do the other 6 so I can get ready to CLEAN the next 3D course

[8D]
Thanks for the thought...