How to trim allot of pieces fast?

 From:  Frenchy Pilou (PILOU)
11785.2 
In your special case
Maybe you have better time to make one losange module
then make an Radial Array
All makes maybe 2 seconds! :)

PS You must also put your object on the origin and not in the empty space of the galaxy! :)
Because some functions don't like this sort of thing!