For experience ......
TIRED?! - time to stop for the day, that is when mistakes happen, we need all of our fingers !!! I almost trimmed one off with my router one night !
I was close to touch the spinning bit, just cause I was exausted and my mind was elsewhere. SCARY ! I shut the router off.....had a seat......recovered from a near heart attack, took me 10 minutes to get that ugly sensation away from my legs !
ROUTER ! it's a killer, always keep it still when you complete a channel route:
never just lift it out meanwile the bit is still spinning, might chip the sides of the channel, making it messy, same thing happend to me twice douring the body slush trimming, I was on one of the horns, I tipped the router accidently (mostly cause there was not much of surface to slide on, and chipped out huge chunks......
Plan everything douring the building, improvise when you are playing the finished guitar, EYE PROTECTION always ! I use earplugs with almost all powertools, and lungh protection ( I am not so constant in that ).
Mistakes are lessons, they will make you better !