I am trying a find a compact flash with HSS compatibility for my Leica S2 as I need to shoot at 1/250s or higher for fill in hand held travel and portrait photography.

The Leica SF 40 seem to be a perfect fit. However I could not find any instruction on HSS instruction manual.

Since Leica SF 40 is similar to Nissin i40, I am wondering whether is the HSS setting instruction applicable to the Leica SF 40.

Can any Leica S user share the experience with the SF 40.

Thank you