On my 16/32 I run 80 for the first couple passes then switch over to 150 to start removing the marks. I mean lets face it, 80 is nothing but like using rocks. After the 150 I go back to 120 on the orbit, then 150 then 180 or 220. I take a soft lead pencil and mark the piece up all over between each pass. When the pencil is gone, I switch grit until I reach my last grit.
I really hoped the drum sander was the answer to end all sanding but it just ain't so. It speeds up the process for sure
If you don't take pride in your work, life get's pretty boring.
Rule of thumb is if you donít know what tool to buy next, then you probably donít need it yet.