Save DCs: Certain scaling items have save DCs, and like most magic items, these don't scale. Unfortunately, when you have an item that requires the investment that scaling items do, and since they even have the word scaling in their name, you would expect some degree of scaling out of them. Therefore the save DC of any effect caused by a scaling item is instead 10 + 3/4 the most recently unlocked level.

Price: In order to calculate the value of a scaling item at any level the following formula is used: Vs=(L/Ls)*(T-B), where L=the current level of the unlock available, Ls=the sum of the level unlocks at maximum level, T=the total value of the item, B=the base cost of the item, and Vs is the sum of the values at each level unlock plus the base cost. If the value increase at an unlock is more than the cost of an equivalent item at that level, subtract the difference and add that to T for further values.

For example: Armageddon Plate at level 6 would cost (6/92)(133650-2650)=11,193 by that formula, but +1 light fortification full plate normally costs 5650, so V=5650, T is increased by 5543 for subsequent calculations.