Realistic Artillery Management - FOO Rule

[Imp]

Okay last post on this subject as views seem sorted already.
I thought the main thing was to stop spreading arty all over the map as the FOO just could not do it. So what I proposed sticks to that spirit & is no harder to police.
Can fire all at 1 hex or all at 2 or 3 adj hexes as line or cluster. Gives you some control targeting an area of a max of 50x150m instead of 50x50m.

Also setup of Battery, all tubes to be set up a max of 1 (2?) hex apart so FOO can counter battery. Also keeps them all in communication range for radio contact fail.
This means for SP arty will not be able to fire if move till back in formation which could represent setup time.
Discuss change one part & you have to fix what you broke.