The spring selling season is already keeping builders busy, says Ticonderoga Securities Analyst Stephen East, who surveyed builders in North Carolina, Virginia, Florida, Texas, and California's Inland Empire.East found that many builders reported increasing interest among move-up buyers. Builders also said that traffic was not only busy on the weekends, but was also increasing mid-week."While the market is benefiting from the tax credit, it is also showing distinct signs of normalizing," East wrote in a client note.