Do We Need Both of these?

I was looking into getting MCP plaid phonics word study level D and Spelling workout level D. We have used both programs but at this level, I'm wondering if both are necessary. Any thoughts?

 

I have heard that there is A LOT of overlap between the two. I would choose only one. I haven't looked at them to compare them, but Plaid Phonics has spelling in it.

 

I agree just pick one. You don't want to over do it.