I finished my top down raglan - and have to admit I am pleased with how it came out This was my second sweater (first with sleeves) and I knit it based on The Knitting Fool Percentage Method
As others had noted, when you are on the "plus size" these percentages don't work all that great - but it was actually a perfect fit in the shoulders/yoke area. I had to split for the sleeves a LOT earlier than the pattern called for - but once I accepted that (involved frogging) and split it, everything worked out perfectly.
I used Plymouth Encore for yarn and just did it in simple stockinette so I could learn the construction without worrying about staying in a stitch pattern. Here are some pics (the one of it not being worn is the truest to its real color) - and thanks for looking