Very similar performance to the v1.4.12.0 build. I ran some additional test flights using the NX Cub and the San Gabriel Valley to French Valley flight plan, reported here:
The v1.4.14.0 build provides the same smooth, stutter-free performance as the v1.4.12.0 build, with neither dramatic improvements nor regression. Both versions are the best performing builds in the SU2 Beta to-date on my PC.