We've had an issue with how to handle Allies and Cut-Rate Resurrection.
The issue with allies and Cut-Rate Resurrection (also a real rule, now, in DFRPG Exploits), is that Allies are set as a percentage of the PC's point total. So if you allow them to trade off 20 points of disadvantages or lost advantages or reduced stats, it's not a big deal. They'll reset over time to the appropriate percentage of the PC's point total.
That's not fair - PCs choosing Cut-Rate take a real hit. NPCs who choose it take a real hit. NPCs that a PC paid for with points may as well take it, because it's not really a disadvantage.
We had this issue when Brother Ike died, and I put in an extra disadvantage and we tried to make it so he only regained the lost points over time. That seemed wrong, though, eventually.
What will happen instead is this:
Any point debt incurred from cut-rate resurrection is permanent on Allies. The Ally's point level will be determined by percentage first, then any point debt will be applied after. For example, a 400 point PC has a 50% Ally. The Ally is 200 points; if the Ally had been slain and resurrected with only $5000 invested in the spell, the Ally will be 200 - 20 = 180 points. If the PC becomes 420 points, the Ally will be 420/2 = 210 points, -20 for resurrection, = 190 points.
It sounds harsh, but it does seem be the most fair way of dealing with it. PCs lose points permanently using this method, and NPCs who aren't Allies, so why not Allies? This rules both feels fair and seems to work mathematically, and is also simple enough to implement.