This has always been the rule so I dont understand the issue here? You do require 3 cruisers/heavy cruisers tho but that is not changed.
I may be wrong, but I always interpreted current rule like this:
If you have, for instance, 3 cruisers and a battleship and upgrade battleship to a daemonship, your warmaster must be on the most expensive cruiser (as he can't be on the daemonship, even though its most expensive)
What is needed, IMO, is forbidding making most expensive ship from being upgraded to a daemonship, as it would make it impossible for warmaster to be on it.
That version would remove daemon battleships from smaller games - you would need 2 battleships for one of them to be daemonship.
Your position on this was where I was but I think hey are right. It shouldn't be a big deal to just add a statement (maybe not even needed) that, if the biggest is a daemon ship, it just moves to the second biggest.
I think the point cost should be a percentage round to nearest 5 like a few of the new Tyranid evolutions. I think that's the path we should be going on.
I still support then scatter because I think there should be some randomness and unpredictability in warping in. Also, 4D6 isn't so bad, plus you roll a hit 1/3 of the time.
Horizon: the rolling double 1s dissappear is a little too dangerous for my taste!
Neferhet, even if you scatter 18cm, you are still 18cm of the place where you wanted your ship, so there is still some disruption.
I am fine with allowing a daemon battleship at 1000pts if it is properly priced.