BMS Fundamentals, Images, Martial Science Cross and Parallel Positions Applications October 4, 2012 admin Here is a cross position application. There is no inherent advantage in this position both combatants are equal ie both hands can connect for each. This is the parallel application. Notice how Derek has moved to his opponents offside away from his rear hand. If the student wanted to use his rear hand or leg he would have to reach right accross his center line.