rather than discussing how much gain you get from it, wouldnt it make more sense to discuss what times or what performance product or whatever the number vapor calculated, you can get?

if id do the same thing on this crappy work laptop here im sure some tweaks would give me a huge boost since its a 2 year old windows install with loads of crap on it... now does that make those tweaks incredibly good or does it make my windows insteall incredibly slow and untweaked? how could you tell?
and how about the hdds? what if you have a fast hdd compared to a slow one? sata compared to ide? chipset integrated sata or external sata controller? 8mb cache or 16? or even 32mb cache?

this performance product vopor calculated seems to work very well, so why dont you compare your tweak sucess based on that. whats the product with and without this tweak, that would shed a lot more light on things i think