I say go forward or reversed it really doesn't matter mine is reversed and everybody I know with a 4-link is reversed,hell it just comes down to whether you want the bars in the front or behind the axle.
mine is,no problems,other than I don't like the way it looks,I'm going to get the cantilever square bars from ssd.com then it will be completly reversed,sucks I only get about 4-5 inches of lift
Forward Or Reverse it does really matter as long as it is setup right. A 50/50 has been proven to be pretty natural and does work. I think its harder to get any adjustment out of a 50/50 setup only because you have the bars going 2 different directions and they seem to conflict.