I went to the dealer and I told them I needed some good mulching blades since I mulch year around. They sold me Oregon Gator blades. I payed $16 per blade and they said they were mulch blades. I mowed 10 lawns today and I am not that impressed. They clumped about the same as my other, but they left entire rows of stragglers. Are these blades made for mulching? Please let me know.