HBP/PE3: Pseudo Planche Pushup - My Hand Is Lifting Up

When going down into the Pseudo Planche Pushup, I am putting a lot of pressure on the thumb side of my hand and the pinkie side of my hand lifts up off the ground a little.

 

Is this correct or does the full hand need to maintain contact w/ the ground at all times?

Pressure may come off a bit, but I would strive to keep it in contact with the floor throughout the entire movement.