Ever have a friend describe something so clearly you feel like you were there? My buddy was fixing a tripod in his dark driveway, complaining about a loose screw, when he looked up and the Milky Way was just sitting there, clear as anything. He said it was like the sky just opened up, no camera needed. Good tip from @lucasw84 about the dust, my friend learned that the hard way too.

I hired them for a tricky repair around my skylights. They were fantastic. Kept me in the loop with photos of what was going on up there so I understood what I was paying for.

Actually, rushing the heat IS the main issue in my experience. You get uneven expansion that locks in stress before the bolts even come tight. That port-a-power method is a solid fix, but man, you gotta control that temp climb next time.