I just purchased the Kapex 120 and I am having trouble with getting a complete cut all the way through the wood. Each cut leaves a fraction of a mm uncut. I basically have to break off the off cut piece and leave a splinter rather than getting a nice clean cut. I tried loosening the fence screws and didn't really see much play to move forward. I looked for any other way to micro adjust either the fence or blade depth and didn't see any. Any suggestions?