This week we used the zremesher tool in order to sympathetically lower the poly count of a model. I did run into a problem with this, as the spikes I had added to the model did get smoothed over. I imagine this would be solved by remeshing to a higher definition or masking off the spikes from the rest of the model and making them their own poly group.
Fig.1 Before Remesh 
Fig.2 post Remesh