good luck, i think your lawn will be rough for quite some time between sod, due to the dif of height between grades. might consider topdressing to help that. maybe it is just the pic, if the sod is buried down a bit then i am wrong.
there is benefits to having a warm season, but for the most part i am a huge non fan.
all is fair in love and grass!
Man, it smells like sheet, do you smell that!!