Hi Jfrech,
Great to hear from you! Hope all is well with your fantastic system. Over here has been continuing to advance nicely...nearly done with some very dynamic adjustments.
I also have never heard 35th PAD. And I also remember them well, but prefer the Sablon Prince Orange and the Z:Axis SL777. I have to say for something like 7x more money, the Siltech Triple Crown edges them out and particularly on Beethoven massed strings does something extremely special (subtle but special) in how it reproduces the articulation of massed strings. Weight, body, power all same, but you feel like in addition to all of that there is another 10% of that nuance, very, very, very tiny flickers in bows and rosin but where it does matter when you want to listen to Karajan '63 vs Karajan '63 remastered.
If you want to go for that premium, I have not heard anything that delivers that subtle element...but I imagine both Paul and Mark of Z:Axis and Sablon could already be there (eg, not heard Sablon King which has no UK adaptability...and there is also Sablon Lanedri).