Let me preface this post with the fact that I am very new to operating a semi-mount plow. I have been plowing with a JD 6400 and IH 710 four bottom plow. Overall the setup seems to be working well. However, plowing on a hill when the furrow is on the uphill side seems to be an issue. The plow wants to slide down the hill, causing the bottoms to not take a full cut (leaving about 4 inches unturned). I noticed that there is some slop in 3 pt arms side to side. When the one arm is against the tractor there is about a 1 inch gap on the other side. Could this be my problem? If so, how do I fix it? Are the sway blocks adjustable in some way to keep the plow toward the furrow at all times?