Newly seeded/overseeded lawns will not be very dense. It takes time for the turf to grow and fill in. By next spring, you should see a much more lush, dense appearance. Patience :-)) I doubt you need to add any more alfalfa at this time but you could do a later, winterizing fertilizer application in late Nov/early Dec.

Until you get the results of the soil test back it would not be a good idea to put down any kind of fertilizer since you would not know what might be needed, if any. In addition to what that soil test will tell you about the soils pH and major nutrient levels you want to know how much organic matter (humus) is in the soil as well as how well that soil drains, what kind of life is in the soil, how it smells, and how it handles.
3. If it appears that the previously spread Alfalfa has been digested you could spread more, now.
2. It takes between one and six weeks (better quality, longer germination time) for grass seed to germinate so if you have that much time before the soil gets too cool, or growth stops, you have enough time. Here, in Michigan it is approaching real iffy, but in North Carolina (? right) it may not be.
1. In reality, I would wait. Give what is growing now a chance to grow and fill in.

Thanks a lot. I will wait to see it looks better in spring - else will do another round of overseeding next fall. Just the amount of prep-work that went into it ... didn't want to do it again :)

There used to be a lot of water run off - even with 20 min on sprinklers - so did the baby shampoo treatment - and now it looks much better - no run off ... and the soil seems much softer now. (usually i water 1hr - once a week - if it doesn't rain).

The Alfalfa that i put last time (during overseeding) is all gone ... so i am planning to do another round of it this weekend. I have never put cracked corn - do you think it is ok to put some corn and see ? - just for some variety in what i put.

One thing though ... I have noticed no life in the soil ... no earthworms what so ever. I have raised beds - and have been taking good care of it ... but none in them as well. Do i need to do something to increase the number of earthworms ?

Thanks and regards
Gmanar.