afaik the ProTone's design is based on Curtis chips, while the Profit features the SSM version. The latter is much appreciated for it's sound, but infamous for the (original) chips instability - CWA didn't model that feature, though
Even with a single voice on the Profit they sound completely different.
CWA states they used the same approach as with Minimax for the Profit (analyze and remodel based on real world chip design) - I guess the Protone is more a 'conceptual' model with some (significant) focus on filters and osc.
I can't comment the Prodyssey, but your question is neglectible, since they didn't implement the (far more important) duophonic mode - discussed to death, btw
In this context it can't be called 'emulation' anymore, but represents a 'design inspired by', a very good sounding one, though...
cheers, Tom