I took apart the cross slide and compound on my 10ee. Turning the dial for the compound is tough. I can only find one screw to adjust the gibs and it only turns about a quarter turn. It doesn't seem to make a difference. I thought most gibs have a locking scrandover the back and an adjusting screw up front. All I see is a front screw. I'm hesitant to whack the wedge out with a mallet. Any insights here? Thanks.