Update: I sprayed Basagran (1qt ac) with cleth (16oz ac) and 2,4-db (2qts ac) with very good results. Keystone recommended mixing 2,4-db at the lower recommended rate with mixing with cleth. I was also told by Drexel that you should use the highest recommended rate of cleth when mixing with 2,4-db. I also added AMS Supreme (64oz ac) and NIS (12oz ac).
I followed up with another application of Basagran about 10 days later.
I did have some burning of the clover but it has since rebounded nicely. Nutsedge took a big hit and appears to have been eradicated, at least for this year. We will see how it effects nutsedge long term next year.