Form A/B/C sensors & wiring two-in-one glass breaks.

[theobromine <me@xxxxxxxx>]

Newbie questions.

1)  I'm a DIYer starting to conceptually design a system for my home.
If I have a control panel with 8 zones - each zone having one sensor
on it - is there any technical reason why I should not exclusively use
form B (or C) sensors with this configuration?

2) This may sound like a dumb question but I dont know the answer so
please tolerate my ignorance.  In the above configuration - i.e. 1
sensor per zone - do non-addressable glassbreak sensors that are
two-in-one devices (i.e. contact plus vibration sensor) require two
sets of wires back to the control panel or do both sensors share the
same loop back to control panel?  Ive also seen devices that are both
glass break and motion sensing do these types of devices share the
same set of wires or can each sensor on such a device occupy its own
zone?