Importing to TBC

When importing the point cloud into Trimble Business Center with a California Zone 3 coordinate system the resulting point cloud is sampled down to a 1.3’ x 0.3’ grid. Has anyone experienced this and found the issue/work around.
The data was processed using CORS data with the CA Zone 3 data.
When processing using WGS84 the point cloud comes in great but is 100’+ off. which is then georeferenced using GCP’s.