Some of them turn green at 46. These are the ones in the cave in Feerott.
This seems to be a good spot to pull from if the spawn is well spread out.
Last night, I was pulling for my group and a level 47 SK was pulling to solo
and we had a pretty good pace going. I had 2 rogues and wiz, mage, pally in
my group. The specs died fast and we had a nice pace even with the other
guy pulling for himself.

I was using lament to reduce their agro in hopes of pulling singles. Also I
would lament, agro, then run but not out of line of site. Again, this was
to try to prevent them from teleporting thru the agro ranges of the others.
They seem to path well if they have line of site to you. If not, they will
teleport and bring friends.

Do we know for sure that a horn will enhance our screetch song?

It looks like 46 is a break point for resists on spectres for Denons
Dischord. At 45, I tried it and got more resists than I liked so I went to
other songs. At 46, I tried it again thinking 2 brass songs Denons and
Screetch (yes I am lazy and dont like to swap instruments) would be good
idea. Lots better success - very few resists compared to 45 and no brass
skill increases (I was maxxed already) so it must have been a level
difference.

Of course the last pull was 4 or 5 spectres and it was just me and 1 rogue.
Too many resists and I yelled "ZONE!" "Right on your arse!" was the
response and we Selos zoned into Rathe with less than a bub of hp for me.

Sylly