I am building a three-way with my woofer in one chamber and my mid/tweet in another. the bottom chamber has a height of 30" without the spikes, and the top chamber will probably end up being about 8" by 7" by 7" (* tall). I was wondering what the rule of thumb is for how far back from the edge of the baffle of the bottom box should the top box baffle be mounted? Would it be advantageous to slope the baffle of the top box in any way? and What is the best way to attach the two boxes for ultimate strength and rigidity (I can't help bu tthink that just the screws and liquid nails will give me the bond I really want with such a small syrface area). Thanks a lot!