Im going to persume that the gun in question is a sporter hence the ability to change the chokes.
I however think the qusetion you ask all drops down to your own personal choice, ability and knowledge of shooting.
I will persume once again that you cartridges will be 28g 7s,71/2s or 8
which are designed espechly for clays.
Like any sporting lay out there are birds designed to test your shooting ability, whether there high crossers, rising teal or rabbits ect
some of thees shots may me at distanc to, somthing i would not shoot cylinder at.
Im quite an established shot and on many occasion tackled sporting with full and full or 3quater and full ,
Though without been a smart ars my always preferd combernation is quater and half . Remember this is a simulation of what you might be tryed with when out in the field or on a game shoot.
And yet again i will be using thouse chokes on 100 sporting this evening