Question about weight advantage

[Costacurta greece]

OK Sorry for my english.
Can someone elaborate this.

Everybody says extra pound means advantage, dern /Romero /till /Kevin Lee and so many,. I get they try to dehydrate immediately before weight and then take it back to have bigger size to kind of fight in bigger class. Till as middleweight on welter/Romero light heavyweight on middle etc.
But
I remember when holloway fought Pettis,
At the weight in, Pettis missed and Max told in the interview before the fight , I already knew that I would win this fight because Pettis missed weight ,then in the ring Pettis felt very out balanced and slowly fade away in the beginning of 3rd round quit.

So what is the deal? .???Is it like a fine line when if you cut way to much your body crashes. Is that what happened to Pettis ??
But again I see cormier looking like a zombie before the fight and then in his 40 going in and fights 5 round great.

And Romero also looked like a zombie yesterday which of these 2 cases happens?

 

[elbowsandwiches]

romeros ego won't accept that he's a 41 year old man now.... you can't cut like you did even a couple of years ago.

you need more diet control.

 

[Mr hanky]

Romero will gas badly, he looked totally drained. And Darren Till is "LHW in WW". At fight day with Thomson he was 187 so even above MW.

 

[Grijswaarde]

- Some of them just don't even try (Dem for example) so that advantage is obvious

- Some of them fail and push the weight cut to the absolute limit, so even though they are heavier their body took way more damage (Romero for example).

- Also it is very unpredictable how a body reacts to cutting, can vary everytime. Also a reason to put some restrictions on it since is screws up fights.

- Some are just fat (Also Dem for example)

 

[HelloJapan]

Lots of variables to if its an "advantage":

- Extra weight could mean more power.
- Extra weight could mean slower performance.
- Extra weight could mean bad cut, thus bad cardio.
- Etc.

That being said, those who have missed weight this year have done very well.

 

[thobra]

Extra weight is always a huge advantage. Both in strength/power, durability and being top heavy.

When you cut a lot of weight, you can suddenly stop sweating/losing water. That means in some cases losing the few last grams will be very tough on the body, and can take hours to sweat out. Holloway probably had some inside info that Pettis had sacrificed everything to lose the last few lbs, so it would be tough for him to recover.

 

[Costacurta greece]

Well statistics tell us if you miss you win...
I don't know maybe max is that good but it is what it is

 

[Commando]

It depends on how you miss it. When you’re like McKenzie “renato laranja” fern and miss it by 8 pounds, you’re gonna have a huge advantage. She didn’t even look dehydrated. But with cases like Romero where it’s 0.2, AND you spent an extra 2 hours dehydrated, I don’t think it’ll be an advantage.