now that I've played around with the black spot I agree with you, I think it fits reasonably well within hm progression. i'm still pretty disappointed about the nerf though. it was great for fast travel and was incredibly fun to use, I had a blast using it against duke. it was cool having an alternate way to fight bosses and having that option taken away was disappointing. yes, it was pretty op, but at the end of the day you didn't have to use it. if you wanted to you could fight bosses more traditionally with wings, or you could swap out a pair of wings for another accessory and try your hand at just using black spot for a boss. same with the reaver shark, you didn't have to use it but it was there if you wanted an alternative in progression. I understand why these items were nerfed but it just an takes a small aspect of freedom out of the game. I don't really understand why playing a wacky sandbox game differently than what was intended by the developers is an issue.It has a horizontal speed of 36 mph. The best wings you can get without beating any hardmode boss only go 34 mph.