Hi everyone. I'd like to use this first question I have for the knowledgeable here to kind of introduce myself. I'm pretty new here and am planning to use this place to help learn about this new interest of mine. I don't really know how it started but all of a sudden three weeks ago I got interested in Lawn Care, grass and by proxy the whole business end of it. I'm not sure where I'm headed but I'm a cautious methodical kind of guy so I want to learn as much as I can for a long time to see what the water's like and to see if this new thunderbolt that struck me out of nowhere will last. Perhaps one day I may have what it takes to have a grass cutting business, thought that seems absurd right now - more likely I will simply learn about a complex and fascinating subject and have a nice lawn to take pride in someday. It's always like this - but after 21 years of marriage throughout which my only interest in our lawn was "how much longer can I put off cutting it" I find myself divorced and without a lawn to get my hand on. And I want to cut someones grass! So I drove down to my ex-wifes place yesterday, changed the blades on her rideable 42" Craftsman and started cutting. Well first, armed with the small bit that I've read here I went to take a look at what type of grass there is on the lawn. Hmmm ... a whole collection. It looks like kentucky in some parts and bermuda in other large tracts with mystery grasses interspersed in small patches throughout. So my first question then. I think I've read that bermuda likes to be cut short (1-1 1/2 inch right?) and kentucky does better longer. Does it? What I would like to know is if cutting it short would then make a big difference in letting the bermuda take over - or vice versa. Does height have a big impact? If I'm right about the mix and want the bluegrass to turf out the other grasses - what short term and long term strategy should I take? Will waiting for the right time to see a cool season grass and seeding and the correct fertilizing be enough to see it become dominant? I'm kind of surprised to see bluegrass in most of the lawn as I though that the house would be too far south to favor cool season grasses there in Johnston county NC - but thinking back the lawn seems to always stay green in a way consistent with cool season grass. Any advice would be greatly appreciated. I'm going to do my best to use this as a learning experience. Thanks!