I am considering getting a weed eater with blades instead of string to try to get some weeds and overgrown grass under control. I would like some pointers on the good/bad of different brands, types, etc. I have noticed there are even many different types of the blades to use with them. I need a lighter weight one so I will be able to handle it. The weeds are 4 foot tall asters that are dying now, but there is still those heavy stems to deal with.