Has anyone tried using a universal aftermarket plastic blade trimmer head with the EGO 15" string trimmer? (Overall, I love my EGO 21" mower, blower and hedge trimmer. While I like the technology on the string trimmer - I hate string trimmers of any make. I prefer the plastic blades instead. Can someone suggest a bladed trimmer head that I might try with the EGO string trimmer? I wish EGO would offer a kit dedicated to their brand.