ya,i still remember the nakata selling is different batch of FP-S5 compared to the link to the Twinmos one,the twinmos S5 is rocking,while the bro nakata one i dont know lo...even it's same chip but it doesnt mean it can clock the same result.
Anyway,i think D(GMH is great since it can go beyond 1KHz in low vdimm and tight timing.