bburned coming from a little Hawaiian girl, this is how we do it, but it's all personal taste, there's no right or wrong way, so long as you and yours enjoyed it.
I like to cut the can of Spam® into 6 slices, we prefer it a bit chunkier. I make a Teriyaki sauce to baste the crisp Spam® slices in, top the Rice with Furikake and wrap only about 2/3 of it all with the Nori.
Now I want Spam® Musubi!!!