yea I never leave anything on. I learned that lesson the hard way. my old old house, dad had a shop out in the shed and I caught the sucker on fire leaving an old ratshack iron on by accident. I was a kid then. 

If the hakko isnt powerful enough to suck up the solder with its default setting, I use a heatgun assistance method. Pre-heat the board while desoldering. 

works wonders. 

OH BTW, I did break off a cleaner inside my original tip. I had to use a bench vice and a pick tool, tap the fucker out of there. That was nuts. 

I have a 1MM tip that I ordered when the original one went bad, and I have a couple 2.5MM tips. They arnt designed for the 808 but they do fit. Only complaint is the solder gets around the evacuation tube a little bit, Well its not for the 808 so I cant complain. 

I have already had to disassemble and replace the valve reeds twice in the pump. Thats how often I use it.