OK I have tried a few things over the yrs,
I started off with Poast, then went to Poast Plus
then I tried Arrow
and even used the whitetail slay/arrest(Too pricey)
any way, they all worked OK, the key is to get on top of the grass before it buds or goes to seed
and before it gets too tall
many will tell you if it gets too tall, to mow and then wait a few days and spray
but I simple found if you are doing this you missed teh REAL time to spray for grass in clover
if any had seens by mowing you are in a small way eseeding the plot with grass again
them seeds will dry and re plant come rain or when ever, and be a problem again!
Its still WAY better to cut and spray than not spraying at all thats for sure, but the real time came and passed to stay on top
of all the chemicals above, Arrow is the cheapest to use from my experience
but weeds/grass is a hard deal to eliminate in clover in summer
seeds will blow in from all over and transplant
a better clover take will help keep grass's and weeds out better, which is why a soil test and following them work best and are so strongly suggest before and on all plantings
hope this helps , if not feel free to ask me more, been playing with food plots a Long time, started with whitetail instiute the second yr they started up so,LONG time now!
I have a lot of experience on both good proven and trial and error ways!!