VG2 detection disadvantages ?

[Harshana]

Hi all,

In most of the radar detectors I've seen, VG2 detection can be switched
on
or off. I know the advantage of having the VG2 on. But is there a
disadvantage of having it on ? Does the detection performance is
degraded with VG2 on? Or is it just detector will be inactivate itself
on
every super market door?

Thanks in advance,
Harshana