Is a sickle bar capable of cutting tall bermuda? I have some cheyenne bermuda that has gotten very tall and thick. It should have been cut 3 weeks ago, but the rain has not cooperated. I got a 7ft. sickle bar from a buddy that has new serrated blades on it so I can cut it then have a fried come bale it. He said that I would probably have problems with bermuda and a sickle bar. Is this true?