Thank you again for your input. We have MM1B mixed review and pictographs left and then we are done. I showed my son the samples of Singapore online and he got very excited. He's been doing basic multiplication all day. :) I ordered the IP for 1A and B, to go along with CWP1 this summer, to make sure that he's solid going into level 2 in the fall.
I really understand why people spend so much money in their first year homeschooling. It takes awhile before you figure out what works for both parent and student. But, we're getting there. Slowly...