I wouldn't use it. The perennial ryegrass will last one season in shade, then it will thin out due to its low shade tolerance. It is only 10 percent of the mix however, and I suspect it is only in there for it's quick germination time, and it will help stabilize bare soil while the other grasses establish. America KBG will do ok as long as it gets at least 4-5 hours of direct sun, but it will struggle with less. The Fescues are a great choice of shade grass and can do with little direct sun. The main issue I have is with the poa trivialis. I planted poa trivialis (some of it was darkhorse) in my backyard due to shade issues. It is a nice looking grass when it is by itself, but in a mixed stand it will stand out due to its light green color and it's fast growth rate. It is also sensitive to 2,4 D based weed killers. There are plenty of better shade mixes out there, Bonny Dunes fine fescue mix is one that I have heard good things about.

Thanks for the quick response Tiemco. I will look into Bonny Dunes mix. I may end up having to wait until spring to spread the seed, as there's potential for snowfall at any time these days. Is there much of a difference in benefits between dormant seeding vs just dropping the seeds in spring? In both cases, the seed germinates at the same time it seems.

Dormant seeding is a bit better because the seed gets worked into the soil which is better for germination, you will use less water, and the seed will germinate at the absolute earliest possible time in the spring, giving it the most time to get established before the summer. The only thing to remember is that if it is a very dry spring you will need to irrigate.

Got it, that makes sense. Thanks again.

I've been looking for Bonny Dune or Bonnie Dune grass everywhere...but to no avail :( Anywhere I can buy this online? Preferably the Dormant Seed version...
Clearly I'm a newbie :)