sorry for delayed response. only just saw your post now.
the new tweeter does not fit in the Sasha 1 so i replaced with original tweeter.
The 100.8 provided better bass control and head room over the 30.5. also sounds cleaner/faster.
The MSB is solid. Similar to solid old previous Wadia sound but more detail and no digital glare. i had the Wadia 521/571 which cannot do hi rez . MSB does hi rez.
Changing to Transparent Audio cable probably gave the biggest difference in sound, but then again installing 3 dedicated lines also did and so did the MSB.
all incremental changes , so difficult to say. as things stand i think i would not change cable . i could change speaker or even opt for a bigger Pass Labs amplifier. i emphasize clean power and speaker position should not be underestimated