Hi Andrew....
I answered this in my email to you,, but will answer here as well...
It all depends where you are having scratching..
If its scratching the face,, ,then you've got serious problems....
If its only the back,, then you can possibly fix the problem...
I would try first using a little lube of some sort on your top die.A reduction in friction may solve the problem.
As far as rolling is concerned.. This is something you will have to overcome with practice..
Although I introduced you to the Knife Kits press, I've never used one, so I can't tell you how it works.. I still do mine by hand using a custom tool.. It's slower,, but works fine for me.
I think its just a matter of working with the machine and getting use to it...
Are you splitting or cracking any eyes ??
This will be an indication of you pressing too hard...
Try it in steps, instead of pushing right down.. Flare the eye, then press it down.
You may also want to completely inspect the dies. Any ridges or imperfections in the die *can* cause scratching or splitting of eyes...
Be interested in seeing some pictures of your problematic eyes..
ttyle
Eric...