The structures 再…不过了 and 最…不过
These two structures are very similar in meaning.
The structure 再…不过了
We use the structure 再…不过了 
to indicate the highest degree of some action or characteristic. It should be used with adjectives or verbs.
to indicate the highest degree of some action or characteristic. It should be used with adjectives or verbs.Scheme
再
adjective/verb
不过了
Examples
我在这儿长大的，我对这地方再熟悉不过了
I grew up here, so I know this place very well
wǒ zài zhèr zhǎngdà de, wǒ duì zhè dìfang zài shúxī bú guò le
她的新工作对她再合适不过了
Her new job couldn't be better for her
tā de xīn gōngzuò duì tā zài héshì bú guò le
我看得再清楚不过了，这个乐队存在不了多久
It’s very clear to me that this band will not exist for long
wǒ kàn de zài qīngchu bú guò le, zhè ge yuèduì cúnzài bùliǎo duōjiǔ
The structure 最…不过了
We use the structure 最…不过了 to indicate the highest degree of an adjective.
to indicate the highest degree of an adjective. Pay attention
We can not use this structure with verbs.
Examples
他干这工作最熟练不过了
He is the most qualified person for this job
tā gàn zhè gōngzuò zuì shúliàn bú guò le
我们以最清晰不过的方式表达了我们的失望
We expressed our disappointment as clear as possible
wǒmen yǐ zuì qīngxī bú guò de fāngshì biǎodá le wǒmen de shīwàng
那最好不过了
That would be the best!
nà zuì hǎo bú guò le