<< Generic RAM is not worse! I heard people o/c-ed M.tec 6ns and NCP higher than any brand module out there >>
You take a 6ns ram to compare with brand name 7-7.5ns ram in overclocking is not valid, 6ns ram is 166Mhz at default, it's hard for 7ns ram to be overclocked to that level, this is not a fair comparison.
<< its SPD chip o/c-ing isn't blocked like in those "brand" RAMs that want to protect 'emselves against RMAs. >>
This may only apply to brand name computer with bios ram timing disabled, so you must use ram with spd in such system. A good brand name ram has spd with property written data, in my experience, generic ram has spd with improperty written data - lot of errors from spd test program, I've a rubbish mushkin basic pc100 that has lot of errors in spd.