[Max Lobovsky]

Using composites like fiberglass effectively takes some specific skill. If you don't have anyone experienced in it, and especially if you expect to use it on this years robot (its week 5), it's probably a bad idea to get started now. The difference between fiberglass and aluminum, for example, is not huge, but the amount of weight incorrect choice of sizes and thicknesses and gussets etc can add will be much more significant. At this point, you should probably stick to something you are a bit more familiar with.