[Oluwafemi]

first off, there's no reason for you to raise so much with the blinds @ 400/800. a raise of 2000-2400 would suffice. if the villian is that good of an aggressive player, then folding with 6750 to 7150 in chips is alot better 5150. perhaps the smaller raise triggers a reraise by him [not all-in] that, if you're a thinking player, allows you to narrow down what hands he's gonna do that with. if you think he will do that with A Ko/A Ks, and J J-A A, then your big raise prompted his reraise all-in which could very well be a play for the rest of your chips against those hands. a smaller, more savvy raise gives you more options, and IMO, more information on where you stand and how the rest of the hand will play out.