That sounds interesting Crystal. Except I've never been totally impressed with my Mag.
I use a straight razor blade in a small holder I found in the paint dept at Walmart. The holder is light blue and about 1.5" long. Works like a charm and the blades are cheap.
Before I found that I used a Kent scraper which was also good and has a bigger handle if that is an issue. But the Kent won't get in tight places.
Of the two, I think the razor works best.