how do you do it? I live in the transition zone, and most of my expertise is in cool-season grass. My buddy has a lawn with full sun, close to good sized river, so the soil is a little sandy, but still mostly clay (like everything else around here). Most of the lawn is common bermuda which completely takes off and flourishes in the summer. I told him he should just not try to fight it. I just aerated and overseeded it with some perennial rye so he can have some green this winter, plus I'm also considering painting it once it goes dormant. I ralso ecommended he plant an improved variety next late-spring/early summer. I'm guessing mid-May would be a good time to plant, right? Is it possible to keep the common bermuda under control enough to plant an improved variety? any experience, suggestions? Is this even worth considering? oh, and yes I know how to suppress bermuda chemically (glyfosate, triclopyr, fluazifop-p-butyl, fenoxaprop-p-ethy, ethofumesate, et. al.).