Pokeball Catch Rate *serious* Questions

[Noltron200]

If this topic is old by now, respond by PMing me. Thanks.

Clarifications, Please…
As you will see, theres a lot to clarify.
Please, post a reply that will solve an issue. Do not post just to say
":\I have no clue :("
Feel free to post otherwise.
•Heavy Ball

Spoiler:

dragonflycave & serebii say…
-20 if used on Pokémon weighing less than 451.5 lbs
+20 if used on Pokémon weighing between 451.5 lbs and 677.3 lbs
+30 if used on Pokémon weighing between 677.3 lbs and 903.0 lbs
+40 if used on Pokémon weighing more than 903.0 lbs

bulbapedia says…
-20 if used on Pokémon weighing less than 451.1 lbs
+20 if used on Pokémon weighing between 451.1 lbs and 677.3 lbs
+30 if used on Pokémon weighing between 677.3 lbs and 903.0 lbs
+40 if used on Pokémon weighing more than 903.0 lbs

arkeis says…
Below 100kg: -30 to catch rate
100kg to 200 kg: +0 to catch rate
200kg to 300 kg: +20 to catch rate
Above 300kg: +30 to catch rate
*though I often find this source to be misleading about pokeballs…
**Although it is still a plausible rate it gave out, though I have my doubts.

•Quick Ball

Spoiler:

serebii & dragonflycave say…
A Pokéball that provides a better catch rate if it is used at the start of a wild encounter
Capture Rate is at 4 for the first turn and 1 any other turn

bulbapedia says…
4× if used within the first 5 turns of a battle
1× otherwise

Two other obscure places (Obscure source 1 and Obscure source 2) say…
4x; goes down 1x every 5 turns; minimum is 1x

•Nest Ball

Spoiler:

dragonflycave & serebii say…
The Opponent's Level is put into the following formula: (40 - Level)/10.

bulbapedia, along with other sources online, say…
3× if used on a Pokémon below level 19
2× if used used on a Pokémon between level 20 and level 29
1× otherwise

•Dusk Ball

Spoiler:

bulbapedia, serebii, dragonflycave, and says…
3.5× if used in a cave or at night
1× otherwise

A Thread on Smogon Says…
4x in a cave or at night.

In short…

•official Heavy ball catch rate needed
•official Quick ball catch rate needed
•official Nest ball catch rate needed
•official Dusk ball catch rate needed.

Please reply with a source of a website.
(I am working on a series of dexes in excel, and currently, I am having trouble with the pokeballs for these 4 balls… In case you were curious.)