simple eng. experimental ver. is lower than unstable ver. how sudo full-upgrade work?

["jindam, vani" <jindam.vani@disroot.org>]

i want to install gv from experimental.
bug if new version is released in 
unstable, will apt full-upgrade will 
install from unstable?

my plan: enable experimental repo on 
sources.list. update my existing gv 
using apt -t experimental install gv

regards,
jindam, vani