That is one of the things that is truly good about homeschool—parents can change to whatever they want, whenever they want if something is not working. We used completely different basic reading programs for our so and our daughter because they learn so differently.
It’s good to know that there are other good math curricula out there.
Honestly, if the kids can memorize their addition and multiplication facts and understand fractions, I’d say 90% of the battle is over.
The rest of mathematics is manipulating figures and all use those basic tools.