I’ve had some good results the last few months using a single unit. I think you could still have success with a summoning focused AKA daemonbomb army, but it’s tricky. There was some good discussion about it in my Adepticon list thread:
http://www.dakkadakka.com/dakkaforum/posts/list/208724.page
As you’ve noted, the tactical flexibility of summoning at several possible points on the table is their biggest virtue. Their combat stats by themselves are nothing to write home about, but when I am able to add another 8
SM-type bodies into a combat along with a Rhino squad, I’ve functionally transported 14-18 assault models in a single transport. The daemons can also do fun things like assault and tie up a unit which popped the Rhino in shooting; protecting the Entangled squad and allowing them to gain the benefits of charging into combat the following round. Or I can summon a bunch of daemons next to my Sorcerer with Flight, again basically getting a Raptor squad (albeit without special weapons and with inferior saves) across the table to support him for 7pts less per model, and without getting shot at on the way over.
In my three 1850pt games at the Adepticon Championships my 8 lessers did the following:
Game 1: Helped my raptors and sorcerer finish off a squad of plague marines, then tied up another one for the final two turns of the game.
Game 2: Killed a haemonculous, broke and ran off the table a squad of
DE warriors, weathered the charge of and then killed a squad of warp beasts, and then consolidated to tie up a squad of wyches and prevent them from charging something else valuable.
Game 3: Tied up and eventually broke and ran down a heavy destroyer and squad of three light destroyers. Assaulted and tied up a second squad of destroyers to prevent them from contesting an objective.
In the 1500pt tourney I played 5/17, they did the following:
Game 1: Supported a small Rhino squad and my Sorcerer in taking out the
HS firebase of a mostly-dropping
IG army, then cleaned up a couple of dropping squads.
Game 2: Finished off half a tactical squad, held the enemy DZ at the end of the game.
Game 3: In Cleanse, my Ravenwing opponent swung hard around one flank with almost all his speeders, plus a bike squad, plus a DSing termie squad. I had one Rhino on that flank. When he popped the Rhino my squad hid behind it, but I was able to keep my Icon close enough that the Lessers were able to assault the bikes when they appeared. With average dice they would have made the bikes non-scoring and distracted the terminators for at least one turn, keeping them from having any significant effect on the game as they were out of position. The “distract the terminators” part of the plan worked, but 54 attacks over three rounds of
HTH only killed a single biker. Which is just bad dice.
I started to write a report but haven’t finished yet. Still, you can check out some pics here:
http://www.dakkadakka.com/wiki/en/Danger_Planet_May_17_Tourney_Report