The TAS value for a route leg given in the Route Plan takes into account any climbs and descents made in that leg.
On the other hand, the TAS value for a route leg in the Pilot Log is the cruise TAS regardless of any climbs and descents.
I suggest that SkyDemon should be consistent here and that the values given in the Route Plan are the most useful -- the same values should be used in the Pilot Log.
I am using SkyDemon Plan (PC) version 3.0.3.0.