[ebiester]

That Is Why You Don't Do Estimates In Hours.

Relative estimates are much more reliable than absolute estimates. That's what fibonnaci sizing, etc. is about -- you can gauge effort relative to other effort.

Once you have an actual consensus of the complexity of tasks broken down, you can then apply that to the team velocity and make estimates.

Better is Arlo Belshee's system of getting everything to roughly the same size block. http://arlobelshee.com/planning-with-any-hope-of-accuracy/