It works better in DS. 

Can you elaborate on that?  I've heard there may be lag with DSON.  Is that it?  Or is actual functionality compromised?  I understand if a figure or an add-on doesn't support Poser/DSON, then you can't have that figure/functionality (unless you can hack it yourself).  But if it does support Poser, does that mean it works fully (except for lag)?  Or, what kinds of things end up not working even with DSON?