Thanks, Amy. This is getting tricky. Crispers have an impact, like a body blow, which makes them great for blowing things up (e.g., heads, chests, transmitters, headlights, etc.). They're also great for burning things (bodies or parts thereof). The latter makes them ill-suited for bleeding. I'll have to go back and check, but the only instance I recall where I need profuse bleeding is the colonel in the prologue when his arm is blown off.
Lightsabers are supposed to burn tissue, yet I recall the scene in Star Wars, where Obi-Wan slices of the arm off the guy in the Cantina, and when they showed the arm on the ground it was covered in blood. Ditto when Luke cut off the arm of the snow creature on Hoth.
I could just say "it's space opera, stupid; roll with it." I'm leaning that way.