I have most of the tools necessary to make flowers and leaves, (to include the metal ball tool for thining and ruffling). But, having not taken a class (visual is so much better) on gumpaste flowers, I find that no matter how hard I try, I don't believe that I am thinning correctly and absolutely cannot get the hang of ruffling. So many pretty flowers need ruffling and I just cannot figure it out. Can someone help by explaining exactly what to do with the metal ball tool. Thank you so, so much.