Hi markt,
There is a specific reason why paraliminials follow that pattern of right & left side placement ....The human brain is divided into two parts
left & the
right .Both the left & right hemisphere of the brain are directed to maintain a balanced state .This further activates them to perform activities( like memorizing,retaining,decision making etc) throughout the day ....!!
In my opinion following the pattern reaps more benefits .The paraliminials rectifies the focus areas which have temporarily taken a back seat & brings it to a the balanced mode again.Its like wearing your shoe in the correct foot will make your walk easy & balanced else u will tumble due to the imbalance caused.
Hope you got the answer ....
Take care...
Happy Listening !!

TimTim