Is 690 vg2 undectable?

[guit123]

i read somewher it is detectable by both vg2 ansd spectre, i know only sti is undetectable by all but i hope 690 is immune by vg2 atleast.

[jdong]

i read somewher it is detectable by both vg2 ansd spectre, i know only sti is undetectable by all but i hope 690 is immune by vg2 atleast.

I've heard from two sources that the 690 is VG-2 immune, and spectre detectable from VERY short distances, like 200ft or so.