Harmonic Technology: ProSilway or Magic Link ?


I want to know the differences in the sound between the ProSilway III or III+ and the Magic Link II.
I have and use the Prosilway III between the pre and power amp. and I´m thinking to move to the Magic Link II.
Could you compare both ? The Magic Link really represent an upgrade ?
I will apreciate your suggests and recomendations.
Thanks
elduende14