Titian,

Reading about the System 16A is interesting. Could you ask Mr Nestorovich how he achieves time alignment to an old simpleton like me

The instructions seem to recommend that the front edge of the subwoofer should be placed 18" from the satellite, the sub being 24" deep, that makes a total of 42". This appears to be somewhat less that the distance that you are using.

In addition, I understand that the  satellites receive a direct signal without passing through the crossover. The only way I can see to time align the subs output to the satellites is to delay the sats output, effectively to get them to wait for the bass to arrive. It is not possible for the crossover to output the sub signal before it even gets it

Accepting that there may be some way of achieving this that I am unaware of by using Nestorovic's recommended setup (although this flies in the face of what I have learnt), it would still appear that with your current positioning, there would be an inherent 3ms delay