Lewis wasn't asking, just telling you that WSF is a "primo" powder for the .40SW. I used to load the 155gn Speer Gold Dot for my XD40 using 7.6-7.8gn of Unique, WSP and OAL 1.135". Velocities were 1207/1218/1196.
This particular load is the reason that I sold my .357 Magnum revolver. The .40 with it's 4" barrel and 155gn bullets was just as fast as the .357 revolver with a 6" barrel pushing 158 gn reloads (Remington JHP). Velocities for the revolver were 1247/1300/1306. Average 1207 for the auto and 1284 for the revolver.
Another good load I used personal defense was the 165gn Speer Gold Dot ahead of 10.2gn of Alliant Blue Dot and WSP's.
By the way, you mentioned 2400 powder, that's Alliant's not Accurate's powder. Accurate Arms has a 2700 but it's a rifle powder. Please don't confuse the two.
The .40S&W is a great round! I would love to have a 10mm in a 1911 or XD frame with 5" barrel. That would literally "ROCK".....JohnnyK.