Okay, I still need more altitude for a good shot but I didnt feel climbing on my roof just yet. All bolted down. Whether I'll weld the crossposts on is undecided. I just drilled and tapped the supports so at this stage its all very easy to modify yet. I'm still unsure about the strength, whether those supports are sturdy enough. Those are pretty small screws but I did silicone them all down. I also figure I can use that light bar to tie to also. Of course its all kind of premature since I don't have anything to toss up there yet. And I lifted the top. I couldn't tell any difference with the extra weight up there.