Busting still needs to be a decreasinging sucess probability due to the low cost (2 nerve for most factions) someone with 150 nerve can bust out 75 people, there would be noboby in jail for more than 2 seconds.
If the cost increased to reflex the same costing system as reviving (75 base energy) and could be decreased with faction and job perks then i could see it working.
I think the secuss probability would still need to fluctuate based on factors. For example; player level, type of crime (regular crime or OC) and that factor used to determine arrest value.