In a trial play of the system we found a small problem with unlimited will
spending, particularly if using any of the optional rules like Will points
to gobble wounds. 

Being powerless sounds better than being dead. We were using more cinematic rules than four colour, less gritty and attempting to give characters some chance of surviving (there was also a 3 HD attack in there as well that was popping skulls) and the will was flowing faster than blood.

We were looking at making a house rule or two to deal with this
(though not necesarily all at the same time as some of them contradict each
other at this time)

• Flesh Wound - Spend a will and Lethal damage from one attack that round is reduced to Shock. (too wimpy for you - reduce Lethal to 1, apply Shock as per normal)
  

• Cool Under Fire - Limit of Cool for how much will could be spent to soak up damage per type.
  

• Blown Off Limbs - Limit Will to soak damage to maximum hits a location can take ie Head shot can only have 4 Will to soak any combination of Shock and Lethal
  

• Godlike Stat Bonus - using the Godlike fringe benefits like extra hit boxes for superior stats - useful for low point cinematic to get more bang fo ryour buck