That also got my attention, I think the assumption was that higher yielding properties are in higher risk regional areas with lower CG. Which is clearly not a good assumption to make.
I can't help with the specifics but for me asking myself "how does this property fit in with my goals?" brings about other questions like:
What is my current financial situation?
Do I need a higher yield to prop up future lending?
Can I afford a lower yield to get faster capital gains to...