One the things Sailcraft of Canada did starting around late 70's was adding more bulkheads which increased sales by the way. One of many that made a huge difference was the one about 20 inches in front of the main beam. SoC had taken measurements and found the cantilever load at this location distorted the hull section. My T without the bulkhead toed in 2 inches, my friends with the bulkhead toed in 3/8" with the mainsheet full on. The beams were the same. Less toe in is faster.