The 5.5 was just a guess, and I wasn't saying thatyou were absolutelywrong about the mixture,just that 6.24 oz. per gallon wasn't a 2% mix of 41% gly. If there's one thing I've found, it's that you don't have to be absolutely precice when trying to nuke everything. Coalcracker is only using 1 oz/gal and having success, which is much less that I would have thought to try.
For a fall plot, you usually do not need to spray.
I think that may depend on where you're from. Around here grasses like fescue, orchard grass, rye grass, and timothy will take over in no time.