looking at how to go big post , yes it is all timming but everyone knows you need an ozone edge , my questions are : are they a 4 or 5 line setup if 4 line are they say similar to cab like with bar nearly all the way to the bottom , lines ie front and back lines same length , and was there much difference from say the 2010 model to now model or was there a great year model to go for .

Thanks in advance