I am gearing up for my second full season in the business. My question concerns the removal of safety guards on string trimmers. I read where some LCO's on this site remove string trimmer safety guards immediately. I have trashed my worn out, start-up trimmers (Lowe's & Home Depot ) and purchased a new Kawasaki KTR27A. What are the advantages/disadvantages of taking the safety guard off?? Thanks.