Chris, Frank:
Thanks for the filip on the technical details, gents! I stand (OK, sit - standing while typing does nada for my spelling, etc.) corrected! Took me quite a while last nite to find any notation to this detail, but I finally did.
My POINT, in posting my prior on this, is that probably about everyone who has ever read any reviews and the "common" references to these vehicles - including most show judges and viewers of this and other modelling sites - will KNOW about this cool feature (the 4 wheel steering). Hey! that's why I posted to this!
I think modelling the 4-WS can only ADD to the coolness of Rafal's already stellar (IMHO) build. While there was a 2-WS operator's option, modelling it that way has two likely consequences - the trivial one being that, while being historically accurate as an option, it adds NO dramatis to a otherwise great build- sort of like minimizing the modelling opportunity (that "coolness" aspect some of us modellers like). The other one is that most interested but "less-expert" viewers will, sadly, "gig" the model as they are ignorant of the technical detail revealed here...
I confess that I would likely have done just that, were I to see it as a judge at a show!

And I, and others I am sure, have seen any number of tiffs when judges don't know some subtle (and this is) historical fact being shown in a model. The displayer would be in a bad spot...
I greatly appreciate the clarification on this technical aspect of what is perhaps my fav alltime WWII vehicle- life-time learner that I am, I now have in hand one more piece of its puzzle!
Rafal: I still offer to you the suggestion that you model it with the portrayal of that 4-WS feature- it will make your already coolest kit pop all the more!
Your build has inspired me to go get my old Tamiya out, and I'll go the 4-WS for sure! Because it's historically accurate, cool-looking, and the kit has the parts to do it!
Pax!