look up some stuff called maidens hair, I have it and it is impos to get rid of, catch it early and you will be ok, let it ride and it will really screw you up. I'm not sure which you are refering to here. I don't think its the one you are talking about but I think i see some more on the front of the power head. Check and make sure about that because if it gets a foothold it turns into a stanglehold.
Not sure what the "hammer" looking stuff is