This quote from the OP's post doesn't make much sense:
As you can see in the table above there is a TDC and a TDP. Now TDP is max heat output of the processor (wattage), let’s say we stick within Icc (current/amperage) of 85amps at load. 85amps x voltage=95watts (TDP). So If voltage is increased for overclocking, then at idle the processor needs to droop the voltage so that amperage x voltage doesn’t exceed TDP, you do not want to drop amperage because it is almost all the power (plus you don’t have control over it), voltage is nothing but a signal without amperage behind it. Of course with Sandy Bridge you can set the upper limit on TDP and TDC and you won’t push that much amperage until critical point, plus Sandy Bridge can exceed TDP on its own.
Amperage is directly determined by load and clock speed. An idle processor draws almost no current because it is not doing anything. You have no direct, independent, control over current draw. It will draw what it needs to do the work it's doing.
You could run five volts through a SB at idle and not exceed the TDP. Of course, even at idle, five volts would destroy the chip in very short order.
Voltage is not "just a signal". A better analogy is that voltage is pressure and amperage is the volume of flow. The amount of work done is voltage multiplied by amperage. Nothing happens without either component.
Load Line Calibration or Vdroop control is a setting that eliminates/reduces processor voltage droop under load and in many extreme cases many reverse voltage droop. Voltage droop is there so that under load conditions where current (amperage) is increased the processor stays within TDP (Thermal Design Power). There is also vdrop which is implemented by the motherboard manufacturer, vdrop is there and it drops every voltage on the board from what is set in BIOS, no matter the load. LLC can reverse Vdroop and Vdrop in many cases.
This is not primarily why vdrop/vdroop exists.It exists primarily to protect a chip from transient loads and the spikes that are sure to follow with most VRMs. The VID specification is the max voltage a chip is ever supposed to see (with a provision for a very minor overshoot), not the voltage that is supposed to be continually delivered.
In the end, I usually recommend against LLC/turning off vdroop. In most cases it does not help anything, and only serves as a false reassurance that you are not putting too much voltage through your chip because you can set a lower number in the BIOS. In reality, the opposite is usually true.
That said, on boards with very robust VRMs and multiple LLC options, I am usually willing to reduce vdroop, because Intel's default load line seems overly aggressive in lowering voltage at high current draws if you aren't even near what the board can deliver.