Jed, I do trim my acrylics pretty often. I don't like the nail to stick out more than 1/16 to 1/8 inch beyond fingertip, because a lot of my playing is done with the fingertip itself, rather than the nail. (This gives a softer, more mellow sound.) I can file them down with a multi-textured emery board, but acrylics can easily be clipped with nail clippers, just like natural nails can, so I sometimes clip them and then file them.

Genie