Are these how you guys keep the really sharp pretty edges around the flower beds? seems to me it would knock all the stuff into the mulch and make a pain to clean up. I have been looking into these things and i seem to like the bigger one by the other company better, forget the name now, brown something I beleive. I would hate to see the price on the since it has more functionality and 6 more hp then the turfco at 1000.00. ANyone know of any sites for these tools? Are they worth the investment? Thanks.