I'm not on Twitter, but I do have a Steam account under 'Sega Chief'. The more bugs you let me know about, the more I can get ironed out for 1.3's release; feel free to add me on there.
The Junon Leagues is currently only two brackets, I'm adding a third to 1.3. I'll give the HP Steal weapons a look over. And from the Turtle's Paradise sidequest, you get the following: Megalixir, Light Curtain, Lunar Curtain, Sun Curtain, Astral Curtain, SS Mine, and a Gospel Spark. All these items are available elsewhere so they're not missable.