During my training I was always taught to have the ball/toes of my foot on _either_ the lower portion of the rudder pedals (controlling the rudder/nosewhel), or the upper portion (controlling the brakes), but never both at the same time.
Using this technique and landing in a crosswind, it can be a bit "squirrly" during that period where the airplane is on rollout and the rudder must be released to allow foot repositioning to the brakes. I was always told by my instructor that you never want to place the heel on the lower (rudder) portion, and the ball of the foot on the upper (brake) portion at the same time since brakes could inadvertently be applied during touchdown.
I recently acquired some "saitek" rudder pedals to use with my home simulator and based on their construction, it appears that they assume the user leaves their foot in a single position and uses toes to activate the brakes, and heels to move the rudder. Was I taught wrong, or were these simulator pedals just not designed by a pilot?