Pearson or CGP textbooks for Edexcel Triple Science?

Hi, I'm a triple science student, who's just started year 10. Our teachers have suggested we buy the official Pearson textbooks however I already have access to these textbooks at school and at a tuition. I was thinking of buying the CGP textbooks to expand my sources but I wanted to get a second opinion

"to expand my sources" is not something that needs to be done at GCSE. Especially science. CGP is a very user friendly way of presenting knowledge succinctly. If you are having trouble condensing down knowledge in revision, use them. The start of year 10 is a bit early to be needing CGP books, but think about it in 6 months would be my advice.

Are you certain? Not the revision guides, I mean the actual textbooks. If I'm dead certain I want to buy one, should I be looking at the offical Pearson textbook or the CGP textbooks?