Like i said, these tests were only done in UW on aataxes. They did scatter (also transfer aggro to you) when SS was on, FoC, desecrete, Defile. SV/AV made them scatter/stop attacking. Spoil Victor made me gain aggro immediatly.
I tried Fissure with a 55 monk, and for some reason when the 55 got the aggro, the second I put on SS they didnt scatter, but went straight for Rastigan( Ghost at the beginning of Fissure) and attacked him, needless to say fissure ended quickly. We brought along another monk, and did the same thing. 55 got aggro, I cast SS, they ran to Rastigan (sp?) and the normal monk (who was next to rastigan and never got aggro) kept healing rasti. I cast SS on them while they attacked Rasti, and they continued to attack through SS (yes, i did put SS on shadow beasts and shadow warriors to be sure) both regardless of any hp, attacked through, and died from SS/desecrete/defile.
We went left up the little hill and 55 aggroed a shadow warrior, and a shadow beast, and kept aggro, as rastigan, was a bit further back then where those spawns were. Anyways while they were attacking the 55hp monk, I put reckless/SS on one, and SS on another, neither scattered, high, low or medium health. We tried this also on shadow monks, eles etc and neither scattered. However i did notice i gained aggro pretty quickly through SS, than before, had alot of Shadow warriors coming at me.
The last part of the fissure test was SV/AV. The 55 went and aggroed a Abyssal, and as soon as I cast SV on 55 monk he scattered (deaggroed on monk) and came straight for me, and the other "normal build" monk. Tried it again with the same effect of SV scatter. Then lastly, when I got aggro from a shadow beast/warrior, I cast SV on myself and they did not scatter, loose aggro. So me and the 55 went back to UW, he brought along SV aswell, got aggro from aataxes, and cast SV on himself and they didnt seem to scatter.
Edit: Oh yeah I forgot to mention I went outside droks with some henchies, to fight some Grawls, got some of them in a ball around the tank, cast SS, they didnt scatter, cast desecrete/defile they didnt scatter (regardless of hp). I didnt test FoC but im guessing the same effect?
Also in my opinion, I won't be making such a big deal out of this, Im happy SS and the other necro AoE's is still as viable in PvE area's other than the underworld/FoW. I think theres always gonna be ways to overcome the farming restrictions in Uw/Fissue with new builds etc, necro's are in my opinion still valuable to any team.
If this all sounds confusing many apologies