What is meant by multigeneration Labradoodles?

When first introduced to North American breeders, multigeneration Labradoodles were given this Lab-Poodle breeding program as the breeding model. It suggested that Poodles should be reintroduced into the early generations:
Original multigeneration program (Standard terms)
Poodle X Lab = F1 Labradoodle
F1 X F1 =F2
F1 X Poodle =F1b (b means they were bred back to poodles)
F2 X F2 = F3
F2 X Poodle =F2b
Above this are multi-gens…
In Australia where Labradoodles originated, they were infused with several different breeds. The Austrailian Labradoodles are quite different from the American Labradoodles, which include only Lab and Poodle lines. It can get very complicated once you get past the first few generations and that’s where controversy can start, so I will just stick with those. It’s unlikely most will ever need to know more, but if you do there’s plenty of information online to check out; unfortunately, according to Beverly Manners, one of the original Australian Labradoodle breeders and the woman who was instrumental in getting them recognized as a breed therre, much of the information is false or inaccurate..
Most North American breeders stick with only Poodles and Labs, but a few are venturing out into the multigenerational breeding. Of course as the generations rise, so do the prices of the pups since it takes many years to breed more generations into them.
I personally prefer to stay with the original generation, so offer only F1 Labradoodles.