I agree with mdinaz.
I use the mean node, and like mdinaz said its always retrograde, so I never bothered to pay any attention to it. The True node does move.
I have read that if the True Node changes direction according to day-for-a-year secondary progression during the course of someone's life, that their life will then become more easy or more difficult. I've not been able to verify this anywhere. There is very little reference to it.
Actually the true node is only "true twice a month" when it crosses the ecliptic. Positions between those times are a hypothesis based on an approximation of the celestial orbits, even though the Moon's orbit varies according to the pull of the Sun.
But the true and the mean nodes are never far apart, and usually within a degree about.
Celeste Teal in her monumental volume, THE LUNAR NODES, claims that the mean nodes due to their consistent retrograde motion are the most appropriate for studying karmic and spiritual stuff in the natal charts. She goes on to say that for timing using prediction, her specialty btw, the mean nodes are far more accurate.
I have to specify in my Haloran program to use the true nodes to get them to show up as R or D. Since I've only ever used the mean nodes, I forgot that they were only retrograde, and why I use them.
Thanks to mdinaz for jogging my memory about this!