Thanks - Windscreen help

Thanks to all the members who responded to my search for information on how to install a windscreen on an 09 Z4. I was able to measure, drill the holes in the roll covers, and secured the brackets in a matter of 45minutes.
I just cleaned the car and used PRIMA products. The first process is not a wipe on walk away but rather a polish followed by a wax. They make leahter, vinyl/rubber treatment, spray wax, wheel wax and a graeat glass cleaner. Can supply specifics if anyone is interested. Pictures will follow.

Thanks agin to all who took the time to repond to my inquire. I figured if I messed up on measuring I would try the double back tape. Fornuately for me everything work first time. No need to give more $ to BMW Parts.
Bill
09 Z4
07 335i