Robin Hoods Playground

Only a couple games has it been able to rip faster. I have it set on 4x now, no change. Does the SPTI or ASPI make any difference? And I have not been unlocking, it seems to do that automatically. The one or two that dumped faster were not unlocked first manually by me anyway.

i meant reading to several hard drives, a 1.5tb segate beracuda and a two other sata drives. The source drive is the sh-163b with the latest firmware
pc is a 3gig core two duo with four gig ram running winxp 64

every now and then, I can back up a game and it will read at 8x or so, but most of the time it will only read around 2x. I have tried reading to several different drives and that makes no difference. any ideas from the knights of wisdom?