RE: seeding rates
GD, right, there are exceptions to all rules. If the fescue were dealt with prior to the planting your field should have lasted longer, the grasses will always win out.
When we sold the Imperial brand we had a client that did a light disking on sandy soil, limed 2 acres with less than 100 lbs of lime and put down about 100 lbs of a going out of season fertilizer, not even the right stuff and no soil sample, and his field looked immaculate for 3 years without any further input... Go figure...