Multiple Caps Layers

Hi

we are very impressed by your article and the improvement you implemented.
In the article you wrote:
"However, we adopt only two layers of capsules due to the relative simplicity of the dataset investigated"
we are trying to use your caps implementation with our problem. our input is 40X40X40 and a more complicated image than MNIST, therefore we want to use more caps layers.
should we simply duplicate the PrimaryCaps layers before the FCCaps layer?

Thanks

Yaniv.