Yes, the required force(tension) in this case placed on the bars is the same. The only difference is that when people lift their vx's they usually just crank the bars harder which as we all know puts more stress on them. They are still supporting the same weight, they are just lifting it higher in this case by putting more of a "load" on the bars. When you re-index, it's like putting the load on your bars back to stock. The bars are supporting the same weight again, but they aren't under the same tension as if you just added a bunch of cranks to them, it's closer to or equal to stock tension. Hope this clears up the reasons for re-indexing.