The common denominator here is practice....practice....practice!! I do agree with your leather comment though, most of what I have bought has been from Tandy's, but I had a saddle maker give me a bunch of scraps of Herman Oak and I could not believe the difference in definition and depth between the two!!! I think one problem I create is with my pressure, I think I'm pressing to hard when creating my line. I think I need to back off the pressure and simply score the leather with the divider and then create the line with my tool, may help me create a more smooth flowing line than the wavy lines I'm getting now.
By the way, I checked out your website...very, very nice work. Thanks again for the advice. Jim