Is SN testing really needed?

[AnoAno3]

Hi,

Is it really needed to test the SN? I ordered the SN from a Polish website starting with A and ending with O from a seller starting with B and ending with O_pl. The seller has 68 positive reviews.

Is it really necessary to test the SN before CTB? It feels like a headache to do for me.

 

[ItsyBitsyWeetard]

i mean afaik if its from a source that has a good reputation u can just skip the testing part

 

[yellowsouled]

Yeah, have seen this seller praised before. Usually the main stuff you have to test is the real obscure ones.