I don't know the schedule that BaneBots works to, but its probably similar to that of vex or andymark. If you go onto VEX, they sell many different gear ratios for the planetary gearboxes. Since ours is a 1:35 ratio, we used a 1:5 stage and a 1:7 stage. A great resource is the
JVN mechanical systems calculator. You can choose your own gear ratios and then make educated purchases. In the linear mechanisms category, you can specify the distance to travel and the weights for approximate times.
Best of luck!