Ok
I will update my order and send Jhon an email about that - actually this is one of my open issue - the system style , i think this is a great advices .
Many thanks
I think this is the best forum I ever seen with all the help given.

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By the way - some general questions about attaching - I know that for best natural no shine result is best to use only glue in the hairline and use tape on the poly side and back.
How you put the glue on the forehead in the right position ? Is there some magic ? I know I need to put the tape on the poly sides and back any than attach it , after it sits you can mark the hairline - but how do you mark the exact line ?
I found that the ghostbond is good for hairline lace .