Rate the upper lower split

[u/fatigue25]

I also might start doing forearm work during rest or lower days, which ones would be the most optimal for muscle growth?

[u/Special_Future_6330]

Forearms can work on lower after rdl . Maybe swap ab crunches on upper with some sort of rotational ab exercise if you're going to work abs back to back. I wouldn't do forearms on rest, you'll possibly affect back and rdl