:iagree::iagree::iagree:
:iagree:If you don't have a DA, I am guessing you also don't have a Paint Thickness Gauge
Sanding with 1500 grit is serious stuff
If it was me, I would follow with 3000 grit to save my hands, shoulders and time
Compounding out 1500 on even one panel, by hand, will be exhausting