One jegerbombs are awesome u will learn this when you turn 17.
Two i bought them for everybody to get the night started off right which it was definatly a crazy night.
Three the cable is impossible to get tight without some kind of a ratchet strap or winch of come along. (I tried ) . I put a I loop in one end of the cable which the ratchet hookes to the further you go with the cable the tighter you need to stretch the cable to get sag out of it. This was about 70 feet or so we have a 100 foot cable. main issue is that when we clamp the opisit end of the cable it puts a small kink in the cable and i am worried this will caus a bump in it when we go longer on the next one we will find out tho.
Four the wood will work fine i am sure we used aluminum because i suck at working with wood and aluminum is nice and strong and light. and free :)