How do you deal with absolute polarity?

Perhaps that explains why some cd's sound better than other. (besides poor mixing). I no longer have the ability on my current equipment to change polarity shy of inverting the speaker cables. But when I did have equipment with a switch I did notice differences between phase settings. 
For critical listening I could see where you would want to select the best settings. And it's nice that you have that ability.
I have a playlist that I use for critical listening/testing that I know is good. So for most of the rest of the time I just listen as it is.
My system is based on a Mac Mini as a server. Perhaps JRiver has a phase reversal setting but I have not found it yet.
However it is nice to optimize when possible.
Keep up the good work and enjoy.

Both my CDP and phono stage have phase reversal switches.  I've marked the discs/cuts, on which the Wood Effect is obvious and play them accordingly.

Check absolute phase by disconnecting a speaker and applying current from the positive pole of a 1.5V D-cell battery to the positive speaker terminal. This should cause the speaker cone to extent outward.

Assuming that the channels in an amp that powers the speakers in a multi channel system are in phase and correctly marked this will cause all the speaker cones in the system to move outward when a positive signal from the amplifier is applied to them - and that's absolute phase.