Blend Tool Questions

I don't know a lot of the tools or shortcuts in Corel. I typically just stick to whatever way I know how to do things. In a case like this I would individually place the red arrows along the line I made, but that would take a while and I thought Id try out the Blend Tool. Once I figured out how to get them to follow a path I ran into this. It squished the arrows in the middle. Is there a way for the tool to not blend size? Or maybe there's another tool that could do this job better?