Any lawn pro's with some advice?

the results of the roller will depend on the texture of the soil, moisture in it, and the weight of the roller. a "real" roller will require at least a small tractor. this will also cause more compaction, so the aeriator can be more important. it will also give the seed a way to get into the soil. germination will depend on temp., moisture, and the seed being covered.

the aeriator won't hurt anything, how much it helps depends on soil type and compaction; and a dethatcher can help if that's a problem.

putting down good topsoil in the low spots, and barely cover the seed? and water will fix the low spots easily.

if you are dealing with a "cool season" grass the spring is great time for seeding.

if using a herbicide, be careful as that can damage or kill the seedling.

the member with that great lawn, for that results the pro way to do is : soil test to determine the pH of the soil, so the plant can utilize the fertilizer you apply. lime and fertilize according to the test. a pre and post emerge weed control program. mowing that particular grass the correct height at the correct time of year. and of course being able to irrigate when it needs it.

your local ag county agent can give advice/ literature that addresses the growing conditions and grass varieties specific to your area, and its free. ( the soil test generally costs $ 10-20 but worth the $..

hope this helps a little. ag degree in previous life. I still work part time on golf course ( for parts $$ ???) or

like RRR Rob says, just let it grow and mow! that's what I do. my lawn used to be part of the pasture.