Yeah, the grid is relatively small and sometimes it affects the growth of caves. It shouldn't happen too often, but I'm planning to fix it anyway.
To be honest, I was thinking that having the grid be smaller would be easier just for the battle with massive monsters. Right now, a Rathalos would take up just about any space generated by the generator if the hexes are 5ft across. I know I could just set each hex to a 10ft radius to help conceptualize, but a 5ft radius is so much easier to work with, especially with a game where body part targeting is essential. I know for many people, the grids being so large might be a bit much and my design is probably a little more niche. I will make do with the square grid.
Great work, though! I love your tools and have already used the City Generator on several occasions as well as Perilous Shores. I have looked into so many options, and your tools surpass everything else out there by a long shot.