I really believe timing is a big factor in TTC A Specific Gender. Quiet a lot of ladies have success with using the shettles method. I would be defiantly using shettles as one of my methods when I decide to try to conceive a baby boy.
Theres also plenty of information in TTC A Specific Gender on shettles and other methods to help sway for a baby boy.
Trying to Conceive a Specific Gender - JustMommies Message Boards