behavior when CV out of range

[Buck Buchanan]

Hi all, got a question for the group on basic design philosophy:

What's the consensus on how a given module should handle CVs that go
"out of range."

One of many possible examples: Some VCO is set up to handle a CV range
of say -5V to +5V (system CV range).  And lets just say that when the CV
goes over +5V, the sweep tracking goes out the window, the freq. goes a
little further and stops - no harm done.  And suppose on the "bottom"
that the module stops oscillating as the CV drops below -5V.  There
could be other symptoms (including device failure I suppose) and this
type of thing could apply to any voltage controlled module/parameter. 
I'm purposely being non-specific.

So what's the feeling out there?  Do you like a module that exhibits
poor,  non calibrated, or even bizarre behavior at the end of it's
ranges?  Or would you rather have it setup so it's not possible to go
out of range (either with clamps, clippers, etc.)?

Personally, I've got some modules with precision clippers in the CV path
so the range stops cold exactly where I want it too.  But maybe that's
not the best thing to do especially in cases where nothing "bad" happens
as CV goes out of range. 

I know one option is to set it up such that a CV *shouldn't* go out of
range:  say when manual control (CV offset) is at "max" and input CV is
at "max" then the total CV will be just at "maximum".  The drawback to
this seems that without an external CV applied, the module can't be
tuned to it's maximum range.  I believe some Serge modules fall into
this category.

Part of the reason I ask is that I tackle this issue almost every time I
start a new module and I notice that a lot of the designs out there
don't *appear* to address this issue.

Any enlightenment is much appreciated!

Buck