Hi Havensov,

I'm sure there are others who are far more competent than I in bondage, but from my experience with shibari what I found works best is about 25-30 feet each for breast and crotch.

It depends upon what you plan on doing. For instance, to just wrap the breasts a couple times, you'll need less than creating more of a harness for them. Also, in a crotch rope if you add the daisy chain it eats up more rope. It really depends upon what you're binding as well.

Other factors that play are the gauge of the rope, and the size of your partner.

If any rope is left over it can easily be turned into a leash harness... or adding karada... or connecting breast bondage to crotch bondage to give that little added tug... or tying thighs down... or wrapping wrists together... or tying hands to the bed post...

as you see, extra rope isn't necessarily a bad thing!

Hope that helped answer.

Have fun this weekend!