Man, not much data out there!

I have 700x, cfe pistol, and 90 gr lead bullets.

Gun is a Ruger LCR .327 magnum 1.8 inch barrel.

Which powder is more appropriate?

If I was going for a light load I'd start with 2.0 grs of 700x. (No data for this, just my guess as a place to start)

But I actually want something hotter to simulate a mild .32 magnum load. (I have alot of .32 Long cases)

Would the slower CFE Pistol be better for that? Or would 700x be better due to the short barrel?