Stick some cardboard to the underside of the CF interface

I got black electrical tape on the underside of the shielding there and where it drops down to the expansion connector.

When I install my CF card into my Amiga 1200 , do I need to place  some kind of insulation   between the CF card and the RF shield? (To avoid interference or a   short )
 Or is it ok the way it is?
 
 Here is a picture :
 https://plus.google.com/photos/104432096903073723714/albums/6004010865074430049

I'd secure it with velcro personally (it will insulate it too as it will be slightly raised from the shield). Even a small square of the stuff secures 2.5" hard drives. To think there could be something loose in my Amiga and 'flapping' around would drive me nuts! Please secure it...I may not get any sleep tonight unless you do!

Both are for carrying ground? As long as it is not banging up and down you should be fine.

RF shield...what's that

I forgot to add the sarcasm tag to my comment, the RF shields from my A1200's are sat in a cupboard.

I like my RF shields intact if possible. I have a heavily souped up A1200 and a shield is out of the question there however.
Just want to add that not all A600's come with upper RF shields to begin with, at least not all the ones I've come across in the UK.
People say they're not very effective anyway, but like someone else mentioned, with all the radiation zapping around in peoples homes these days it might protect the Amiga more than it protects FROM the Amiga. And also less radiation has to be a bonus as we're being zapped from all angles these days.