Today I finished an Italeri Ju 88A4. It sat with its clear parts masked for about 5 months before I painted it. Of course, when I removed the tape, there was lots of residue left. I used a q-tip and Goo Gone to remove it and there was no evidence of paint removal.
Word of caution though. A couple of weeks ago I asked my wife to pick up some Goo Gone when she went down town. She came back with a product called Goo Off because the hardware store (the only one in town) was out of Goo Gone. Goo Off comes in a yellow can that looks just like a lighter fluid can. I got smart and tried it on a scrap model and it did a really fine job of eating plastic. (works great for removing gasket material from 1 to 1 aircraft engines though) . So be sure to test on something you don't really care about.