Have not had much time but here are some observations so far.
** It should be noted that after you have had discussions on stats, you have effectively opened up debate again by keeping their costs out of discussions until this time **
I am not sure the Ork format is a winner, however these formations reallly shine under it:
Winners:
Harridan: At 400 points I will have DC9, 35cm move, 6 shots, 9 attacks at CC/FF5+ (not that great I know) and 3x MW hits in CC. Probably one of the best buys possible in Epic especially if you use them to grab or contest an objective late in the game
Trygon Swarm at 375 points. If used for Tunneling and 3rd turn appearance, they are probably better than the Harridans above.
Zoanthrope: THis
may finally see an inclusion into one of my lists if I can get past that 15cm move
Here are some concerns:
Exocrines: Quite expensive IMO and unsure whether they would be taken for 60 points a pop in swarms
Meiotic Spores: Useless in Swarms as the Scout ability is effectively cancelled out by the 10cm move
Haruspex vs
Malefactor: It would be rare that I would take a Haruspex over a Malefactor. Malefactor is supreme due to the +5cm move and transport. You could also relate this to the
Carnifex although Fearless is a small bonus (yet not really enough to justify the same points).
In regards to the slug tanks, if you want to see them in Swarms (and not just Independants), they will need to be cheaper (not hard seeing you are going by 5 point increments). Otherwise if they will never be taken (as I believe they will not outside of the Independants), then there is no use in having them as an option in Synapse swarms. I feel the same about the Meiotic Spores
I feel further work could be done in bringing down some costs and maybe combine some unit costs - which will mean changing some unit stats. Hate to beat a dead horse (but I will) - please see what I did in Tarrasque with Gaunts. I priced them all the same, and then named their upgrade/unit as 'Gaunt' rather than terma/horma/garg. It will look neater.
I will try to make some lists up to test activation count next.
That is it for now as I have run out of time for lunch.