Until recently we have been using Wordly Wise for vocabulary, but not doing spelling. I have just purchased SWO Level B for my almost 8 year old, and SWO Level E for my 9 1/2 year old. I love Wordly Wise, but the words don't follow any particular spelling rules, so I don't feel like it's best choice to use those words for spelling. My older son is a good speller, but I've recently noticed a lack of attention to words I thought he knew. Spelling doesn't come as naturally to my younger son.
Basically I'm just not sure how to balance the two. I am happy with the curriculum choices that we've made. We also have AAS Level 1, but my younger one didn't care for it very much.
Please let me know what you think.