TDE seems to unbind phalloidin, even if you fix again after staining.  If anyone has found a 
solution to phalloidin staining and TDE mounting it would be good to hear.  Specimens are 
mounted in TDE stepwise through a dilution series.  TDE is diluted in PBS in concentrations 
of 10, 25, 50 and 97% (the final concentration determines the R.I you want).  I recommend 
you check out the original paper that explains the simple procedure very clearly.

Paul