I have looked through most of the ladder/traction bar threads. I pull up to 10k once in a while but would still like to put a set of bars on. What is the difference between the two and are there any negatives to them? I have the next month off school and want to make my own set, any recomendations on size etc? Also looking to put airbags on in this month also, will they interfere at all? Thanks ahead of time