I looked into getting red runners, as I was interested in how quickly they bred. But when I weighed the pros and cons decided to stay with dubia. These guys are quick and they drop their egg casings. I also spoke with a few insect breeders that said they tend to stink a bit more than dubia too. If you decide to get some I'd be interested in your experience.
Ive tried them,and yes as feeders they are GREAT!, however, they can breed in cooler temps and you will loose a few during feeding, and you will start finding more than a few in a couple weeks. I no longer use them due to the fact they can survive in cooler temps and thrive.