Page 676 Support QampA Rules Dragons and Dungeons Daishains The Protector. says...
Good question Kyrro, perhaps a houserule for the familiars, while flying in a castle?
At the moment, the 100 feet is restricting, in this instance with the pseudodragon use. Either way his use of stealth, and changing colors to blend in still requires a die roll.
At the moment if castle is attacked from the air. Both Tazskan and Velon can work the winches, on the ballistias A trained archer can still aim and fire such as Zarra. Without the strength problems.