I've done both ways, but saw no advantage to a dedicated day.
My arms suck anyway. As @Shelby said, arms are a very genetically dependent body part.
Same. So @hawkmoon and @Shelby…..if your arms suck, going from like a P/P/L to something with an “arm” day won’t matter much?
Some thing like JMs gama bomb ish
Back
Chest+shoulder
Quad
Off
Arms
Ham
Off
Edit: I guess there’s always synthol lol