Hi Chris, Yes, I removed the redundant male poppers and utilised the holes which, on mine, went straight through to the scuttle tube. I then put the male poppers on top and screwed down - effectively sandwiching the mirror mounting pad - to enable me to continue using a tonneau (does that make sense?). What I didn't mention was that the aero I screwed directly to the scuttle was an RiF version which had a flush mirror mounting pad, whereas the CC version is slightly stepped to accommodate the poppers IIRC. Down side of using self tappers is they will eventually wear the holes. I believe some have sucsessfully used rivnuts to avoid this happening. The rubber piped edging used on the rear wings works equally as well and can be easily glued to the underside of the aero. Not the best photo but you can see the male popper studs which retain the mirror pad. P.S. Memories keep percolating to the surface...! I used the same aero on two cars and the first fitted like a glove. The second, however, had a gap of approx. 3mm on the passenger side. I subsequently discovered that it was the scuttle being distorted by the wiper spigot nut pulling it out of shape - release this and it would spring back into a perfect contour.....never did fix it. Upon reflection, the piped edging is the better option as it has plenty of rubber to facilitate gluing and the piping masks larger gaps.