We are going to be doing the full percussion ensemble on the field thing this fall because of lower numbers in that section and young players. I have seen rack mounted bass drums in the past that allow one person to play the entire bass line like concert toms. In my shopping today, I only found the horizontal mounted ones, but I swear I remember seeing one that had a vertical style mount where the drums were in a square shape. Am I crazy or is there a product out there like that?