I have used N310, N320, N330, N340, & N110 pistol powders. N330 & N340 should work very well in .40, since their "burn rate" counterparts from other makers work well.
N350 should work well.
My favorite powder for .40 is Universal Clays, which is more in the N330/N340 burn rate. I liked it so much I never got to trying N330 & N340 in .40, both of which are excellent powders in 9MM.
WST is an very good powder IMHO. It is pretty fast as far as pistol powders go, burns clean, can be very accurate, and goes a long way. It works well to very well anywhere a fast powder is suitable. It is my choice for light .45 ACP loads in my S&W 25-2 revolver.