I will be giving it a go again this year. I just received a bag of Champion GC. The cultivars are different this year:

I started last year Sept 23 or so in sections:

I was way too aggressive with the verticutter. My Bermuda took a hit as I took out too much.... here is the rye October 3rd:

Amazingly fast establishment. It took off and then from late December to early February it just sat there nice and green with very little growth. Then a nice spring regrow and I loved it... Here is late March
I couldn't bring myself to nuke it and my Bermuda had a slow comeback....here is late may

Then June came.... it was hanging good until a long period of no rain. Some areas of the rye was toasted... the Bermuda need to start coming on... here is June 2nd.... bad....

The Bermuda rebounded and here is July 12....
I don't have an August.. but I'm back happy with the Bermuda in that area and I have a good mix in the north side of the house near trees.... Soon to start it all over... I got the Champion GC now cause last year it sold out and was back ordered for a couple of weeks...
I will not get as aggressive with the scalp and verticutter this year though...