I have a bunch of pics in my gallery and you are more than welcome to take a look. I still use a 30 watt and a 25 watt Walnut Hollow "pen" iron. I purchased a variable tempture soddering stand so now I can control the temps that I use. I can't remember the brand-name, but I will get back and let you know.
All of my burnings and scrolls have been trial and error, based on charcoal studies, drawing studies, computer assistance (nothing fancy, just Microsoft Word), and belive me or not, Tattoos!
Let me know if you need some help and I will do my best!!