TIL my solder joints were never the problem, my $8 iron tip was
My buddy swung by my place in Portland last week to look at my 65% build. It kept double typing on the E key and I had reflowed that switch 3 times already. He flipped my iron over and just said "your tip is cooked, dude." The tip had a black crust from me leaving it on at 400C for hours and I never once tinned it. Swapped in a $8 replacement tip and the whole board typed clean on the first try. How often are you guys replacing tips, or is everyone tinning after every session like they should?