My .02 -
My view of the main limitation of whoopie slings (and the reason I switched back to webbing) are as others have mentioned - the distance between trees needs to be further apart than with webbing and buckles.
This can be overcome by attaching a continuous loop around the whipping of the hammmock and either using some type of hardware to attach the loop to the whoopie (Dutch biner or climbing-rated carabiner) or build the loop directly into the whoopie sling. If the distance is shorter than can be managed with the whoopie slings, one can use the continuous loop over the MSH and toggle.
The limitations of either of the two approaches above would be -
- if you add hardware you are adding weight and bulk (the two main reasons to use whoopies anyways IMHO).
- if you build the loops into the whoopie sling you now cannot remove the suspension if it gets wet.
A secondary limitation of whoopie slings is the somewhat complexity and multiple pieces to loose.
My view of the limitations of webbing and buckles are the bulk and weight addition over whoopie slings.
This is made up for IMHO by the fact that, as mentioned above, in order to get the same versatility as webbing and buckles you have to either add hardware to your whoopie slings (thereby nearly nullifying the weight differential) or loose the ability to remove your whoppie slings.
Others have cited getting sap on your webbing and that being a deterrent for using webbing and buckles. You can fully detach the webbing from your hammock and store separately if this happens.
In the end, HYOH.
My OH is with webbing and buckles