Each situation is different and so in mine, I'll decide to leave a little extra in the deal because its in an area I'm less familiar with, tenant base is somewhat more unpredictable,... thanks for all the responses! 

And sorry to hear about the frozen/busted pipes... the weather here is so unpredictable.

I normally tell customers that you can pull cash out but that you’ll end up leaving some in either because you got an unpredictable appraisal OR because you can’t pull 100% of the cash out and expect to have enough cash flow/buffer in your budget to pay for the full value cash out loan payment.

Market values are unpredictable.

Life is typically weird and unpredictable, but if you've got ambition and work ethic you'll be fine.

I think for my first property I want to limit unpredictable problems that are more common in an older property and try to maximize the enjoyment.

Now.. where the uncertainty comes in is here.. if your competitor does it better than you you won't make it.. but that is not SEO's fault nor does this make the definition of SEO unpredictable... no!

Weather is incredibly unpredictable that time of year.

I am being honest with you when I say that DM is an unpredictable animal.

Appreciation is too unpredictable.