No, Simplicity Pro models are old Simplicity designs.
Briggs and Stratton absorbed several snowblower "names" in 2005.
and they created a new one "Brute"
It is believed (and the machines themselves support this) that Briggs,
since 2005, has been using two main "patterns" for their snowblowers,
the old Murray designs, for all the "consumer level" machines,
and the old Simplicity patterns, for the "Pro" level machines..
And since 2005, all the Simplicity, Snapper, John Deere, Murray and Brute machines
have been the same models, just with different paint. (The Deere snowblower line was dropped in 2011)
New Simplicity "Pro" models are clearly made using the ancestral Simplicity patterns:
The main body of the machine itself is clearly Simplicity, although it's not surprising that some Murray parts would work their way in.
and the Briggs snowblower "consumer" line (including Simplicity "consumer" models) is now all "Murray"..
So there are current Simplicity snowblowers that are now "Murrays" (the consumer line)
this one is a Murray:
but the Pro-level machines remain "true" Simplicitys..mostly.