This forum used to have some real experts in KBG varieties, but they have moved on. One thing you should know about seed is you get what you pay for. All the seed you see at the box stores has a component of weed and other crop in it. The percentage you see listed in the guaranteed analysis is by weight. The really bad news is good seed is heavy and weed seed is light. In fact the worst weeds, common bermuda and bentgrass, have seeds the size of dust. Those seeds weigh one eight-millionth of a pound - meaning a pound has 8 million seeds in it. In a 10-pound bag of good KBG you could have 0.10% weed and get a full lawn of weeds. More expensive seed will have 0.00% weed and other crop listed on the label. Most weeds can be gotten rid of but bermuda and bentgrass are toughies. I'd spend the money for better seed. It is usually sold online only. Another thing you should be aware of is that spring is a bad time of year to be seeding a lawn. Why? Because the crabgrass seed is sitting there waiting to get enough water to sprout. If you are watering enough for grass seed, that is more than enough for crabgrass seed. That is why fall is the recommended time of year to seed new grass. Crabgrass dies in the fall so you have all fall and winter to establish your turf before the crabgrass tries to return. Spring is also a poor time because the new grass roots don't have time to become established and able to resist the summer heat. You may dodge that bullet with your location. With those thoughts in mind, go ahead and seed now and hope for the best. Anything that happens can be corrected in the fall. Please don't till your soil before seeding. No matter what your soil is like, the best thing to do for it is to get grass growing. Clear off the current vegetation with a verticutter (power rake, slit seeder, or other similar tool). Blow or rake off the litter, scatter the seeds, roll them down, and water daily, 3x per day (10 minutes only), for 3 weeks. If you really want to improve the soil, look at the organic forum. If you don't care about that, then just be careful about using exactly the recommended amount of fertilizer on Memorial Day, Labor Day, and Thanksgiving. Going too heavy with chemicals is much worse than going too light. With organics it is looking like the reverse of that advice.

MissMary, I forgot about your shade conditions. Honestly, you can purchase grass seed from Walmart. They sell the same brands as others have on their shelves. It will be the lawn you seek so long as you purchase a name brand such as Scotts. You want something that says "Shade" or "Pure Premium Sun & Shade" or something similar with the word shade as the utility. If there is a Lesco dealer near you, they will also have a shade mix.

Their best bet is to look around and check out the best looking lawns in the area. Sometimes the type of soil and exposure can be a lot different from a nearby area. Clay type soil is a lot different than the sandy soil that's common in some areas. Centepede and St Augustine have been the favorites for a long time, but the recent dought conditions has been hard on Centepede. Centepede does not like fertilizer, but it does need more water that St. Augustine. Both it and the St. Augustine are usually sprigged or sodded. Bermuda is drought resistant and can be seeded. But it's a hateful thing to have to pull out of flower beds. It's not as pretty as the others. Check out the Lawn Forum. there may be someone posting from their area. Here is a link that might be useful: Lawn Forum

I see this hasn't been answered yet. Maybe you should try asking it on the Lawn Care forum. There may be some people who frequent that one, but not this one.