Went out to cabelas to pick up a 10mm/.40S&W load book and stumbled upon some WSF and HP-38. Bought a pound of each. I'm hoping I find a load using power pistol and I'm happy with that load, if not I have the others to try now. If I don't use either with the .40 then I have other cartridges to put them to use.
Hopefully I'll get a good look at the load book and get a batch put together tonight so I can do testing over the weekend.