I think each milk type has its own pros and cons, but I started alternating between formula milk and whole milk as whole milk has higher fat content which is important for brain development and overall growth. I have yet to switch entirely as my son (2+) still loves his S-26 milk! haha.
Is it true that S-26 milk has new ingredients now? I am looking for a milk formula change as the current one didn't really suit my LO
Perhaps you can try to take samples and give it a try.
π