the discs are not even.. like there ummm grinded?

[87lxaccord]

anyways my dad was gonig to beat me because i just put new pads on the brakes and he's like ooh my God did u get them macchine.. and i said noooo.. and he fliped out.. does it relaly make that big of a difference??

[Neuspeed87lx]

usually you should have the rotors machined when you put new pads on ... it wount really hurt anything though if you dont machine them .... do you have a pulsation ?... but if your previous pads were worn down to the metal and they dug into the rotor you should def have them machined.... or even replaced if they are under specs (too thin)