Hi astrosoul
Yep its does involve the destruction aspect in it. I read article by Visti Larsen wherein he mentions that the tamas nature depends on the planets involving.
Also he gives importance to occurrence of the same yoga in Navamasa.
Re. (

) the destruction , it says if it involves malefic .. then it destroys the bad qualities (in one self or soc ) while if benefics are involved then it lead to destruction of good in soc (esp Jup involvement shows life being shattered) .... so far thats what my lil understanding is

.....
warmly
asro