@yilmaelshaday233 https://friday-nightfunkin.com said:

Hey!

I noticed a slight difference between the old and new ones. For example, the new LRs are more nuanced than the older LRs. Also, the new ones have comparative passages while the old ones don't. It has helped to use the old ones to drill and the new ones to do full PTs though so you could always do a combination.

That is very helpful! thank you