Optical or Laser? A4Tech V7MA or Gigabyte M8000X or Gigabyte Krypton?

Summary/TL;DR---> Which option is the optimist for FPS gaming, Optical or Laser? A4Tech V7MA or Gigabyte M8000X / Krypton? I am confused when it comes to mice due to all the gimmicks present in that specific market. My choices are limited so my decision must be wise, please reply with the answer and state why.. please refrain from posting opinions due to a company having its name, rather post your opinion due to statistical graphs or information showing which mouse is superior to the other.



Long version:
Greetings,

As always, I only get to ask here around tomshardware because people are more decisive and careful as they provide statistical information when providing help to anyone therefore they're more helpful when it comes to comparison or optimal performance..

My mouse; CM Storm Sentinel Advance II malfunctioned yesterday because of misuse, the metal LED part was rust and I was cleaning it off with vinegar, obviously some of it spilled and got to the chipboard itself, bricking half of the mouse (the sensor can track but buttons are not function at all), so I decided to get a better mouse in terms of performance, though I am very short on budget.

My budget is precisely $57 therefore I have limited options, anyways even if I had more than that the expensive products would be out of reach.

Before going into details about the limited list of mice that I'll have to choose from, I want you to know beforehand that I experienced "Laser sensor" myself and High DPI, to be honest I feel like I wasted $60+ on Sentinel Advance II thinking that more DPI would be better, but unfortunately the mouse was very bad in terms of actual performance, it was accurate but not precise, if you need a mere example it would be that when playing Battlefield 4 I cannot snapshot/switch through targets with the optimal sensitivity and DPI settings, it had some kind of an acceleration where it mixtures between over-aim and under-aim, obviously running the mouse anything above 800~1600 DPI would cause an overkill (coming from a year and a half experience with the mouse) so I want to avoid any mouse that tracks with laser since it has its exaggerated disadvantages.

The 'quality and performance' that I demand are as following:
500Hz+ polling rate
True DPI (i.e. A mouse with a DPI its sensor can actually handle, not advertising gimmicks like CM Storm Sentinel Advance II..)
Optical Sensor OR a proper and trusted precision of a Laser Sensor
Build/design quality (as in preferable rubber grip for sweaty hands, durable mouse buttons and body, etc...)

Here is a list of mice that are available in my country: (sorted from low to high prices)
A4Tech V7MA ---------------- $40
Logitech G400 ----------------------- $57 (OUT OF STOCK IN ALL STORES IN EGYPT)

So far after gathering reviews I came up to the following:

A4Tech V7MA:
No issues at all, neither physically nor in software
ACTUAL PERFORMANCE IS UNKNOWN, NO VIDEO OR STATISTIC SHOW THE ACTUAL PERFORMANCE, PRECISION OR ACCURACY OF THIS MOUSE


Tt eSports Black:
Known issues:
- Right click issue where it hangs, doesn't respond or sends multiple clicks and sometimes unplugs (malfunctions)
- Sensor drift and imprecision
- In-durable, doesn't last long


Tt eSports Element:
Known issues:
- Left click issues where it double/triple or quadruple clicks randomly at times, also sometimes getting unplugged


Gigabyte M8000X:
- Reported sensor drift, pixel skipping and defective sensor overall with some users.
ACTUAL PERFORMANCE IS UNKNOWN, NO VIDEO OR STATISTIC SHOW THE ACTUAL PERFORMANCE, PRECISION OR ACCURACY OF THIS MOUSE

Logitech G400:
Didn't bother checking for issues since it is out of stock anyways..


Gigabyte Krypton:
No issues at all, neither physically nor in software
ACTUAL PERFORMANCE IS UNKNOWN, NO VIDEO OR STATISTIC SHOW THE ACTUAL PERFORMANCE, PRECISION OR ACCURACY OF THIS MOUSE







Now obviously, I will avoid all faulty (or reported at a higher rate of failure) devices such as Tt and focus more on those with least to no problems;
A4Tech V7MA or Gigabyte M8000X or Gigabyte Krypton..?

Now, take in consideration loads of factors to decide on this: personal experience, true/proved technical specifications (with statistics) and durability.

I first question the sensors, lots have agreed that optical mice tend to be better at PRECISION whereas laser mice tend to be better at SPEED, since I've already tried the CM Storm Sentinel Advance II, I can pretty much say laser mice are just a gimmick, or at least.. they are advertising false (not true) information about their product, as in they stress test/squeeze out the maximum statistics out of the mouse just to advertise it and bring customers.

Though this is debatable, since a laser sensor might be a good grade one while an optical one might not be as good, though reportedly it has been technically proven that optical sensors tend to outperform laser mice in all aspects except DPI and/or speed overall, which is something not as needed for FPS gamers as I can pretty much tell no one would use more than 1600~2000 DPI for FPS gaming since a player cares more about precision AND speed, not only speed.

As I said, if a laser sensor is good enough then the mouse can handle high speeds with precision, by precision I mean 1:1 as in "physical movement"=1 shows 1="pointer movement on screen", so that you're able to snapshot between targets easily and make muscle memory more efficient and effective. Optical sensors with high polling rates are known to be more 1:1 among FPS gamers.

Awaiting your response eagerly!