They hit the glass too hard
Right, in his last post, Stephen challenged you to do it with one hand tied behind your back.
Undercoating, I mean.
And several people wrote how maybe they were heavy-handed, because no matter how they tried, their glass always spun away across the light-box.
So I reckon the best thing now is to show you what we mean.
Sounds good to you?
Good, so let’s get going.