Finished an Anushri & an Ambika with 6 SMR voicecards over the weekend.  Now that I've heard all 3 voicecards, I must say c SVF and SMR are tied to first (slight edge on SVF with BP & HP modes). 4PM is my least favorite. Now, when Tubeohm gets the Ladder Filter Voicecards done, that may take the lead. Stay tuned!