Nah don't dare to reduce castling .
Please do not even think of nerfing clams or even abolishing all hoard items .
The same for castles . Fortunately most other ppl agree
.
Maybe you could completely reform castle building by allowing a player to chose an individual castle by designing it ?
Example :
You have 3 base Versions of a castle : small , medium , big . They give 10 , 25 and 40 admin and cost e.g. 0 , 20 , 50 design points .
Now players can buy additional towers for their castles and place them in the castle designing where they want .
In the battle tactics screen you can place your troops on your castles walls/towers where archers gain +3 precision , + 3 to attack and all troops gain +5 defense .
You can select from various towers and other toys like x-bow tower , ballista tower , mine field sourrounding the castle etc. . All those toys cost like 5-10 extra designpoints .
This would enchance the depths of castle fights quite a lot
.