[HOE] rad intolerant question

[Deadlander@aol.com]

how does the above hinderance work with touch of the doomsayers?
i have a level 5 rad intolerant player and a doomsayer in my group, if the 
doomie cast his healing power on the player would he get +5 to his casting 
total? if so how much easier would it be to get the ugly as sin effect from 
it. normally you get ugly as sin from a  critical wound, but i would assume 
if you are rad intolerant it happens far more often. also you get a mutation 
if the doomie go's bust but again if you're rad intolerant should i pull a 
card on each casting, and if its a joker give the player a mutation? how does 
this sound.