Do I need sdk 2.4/2.5 for better hashing

[kgonepostl]

Q: Which ATI SDK is the best for cgminer?
A: At the moment, versions 2.4 and 2.5 work the best. If you are forced to use
the 2.6 SDK, the phatk kernel will perform poorly, while the diablo or my
custom modified poclbm kernel are optimised for it.

I'm running sdk 2.7 and I want a better hash rate with cgminer. Don't know if this stands true still. But if it does google yielded zero results for a download. Is this still true? Can somebody send me 2.4/2.5??

[kgonepostl]

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[kgonepostl]

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