When you have time, check out Sheila Landry Designs website, and her YouTube channel. She has posted a lot of tips and video lessons along with a intro to scrolling book that is quite reasonably priced. Sheila is a great person and designer that loves to help people with scrolling. You can pick up your phone and call her with questions if necessary. Be sure to tell her that I sent you if you do contact her. Steve Good is another great resource for scrolling. He posts patterns and tips on his blog and YouTube. And while I am NOT in their league, I have been scrolling for years and might be able to answer your questions.