Yeah, that swivel knife is the one to have for all line work except stitch lines. It brings up another question: Do you have one of the good quality ones with bearings in it? If not, that will be another major step in the 'easy and fun' direction. Your knife cuts are smoother and better with a good one.
I went through three of the cheapos until I finally laid down the cash for a good quality one. Now I wouldn't use anything else. The ones sold by Barry King and Hackbarth are top quality. I know there are others but can't think of them at this time. I have three Hackbarths. They're stainless steel and are buttery smooth. Every time I pick one up, I appreciate the quality.