Just bought a black cat z d 7 , noticed that rails are slightly higher than should be. The point of contact of rail is 1 3/8" . I took rail off and notice there are 5 holes in rails, only 3 in table. I'm guessing someone put rails on this from a newer z d x maybe? Any suggestions from anyone is appreciated. I have new Simon is 860 on its way and wanna get this fixed obviously before I put it on. Thanks ahead of time to whoever responds.