HA i did the same thing for the first few weeks i owned my twosome... the musket is just so damn good at that gorgeous muffy fuzz and the boost in the fix'd kicked my SHO off my board... there's definitely a night/day difference between the musket and the fix'd, the fixed gets loud and nasty and cuts through darker fuzzes like the hyperion and the TAFM to name a few, every now and again i'll be daring and flip both fuzz switches up and have fuzz1 at 10 o'clock and fuzz2 at 2 o'clock and rip... my favorite fix'd settings at the moment are:
(1st row) Boost ON Fuzz1 OFF Fuzz2 OFF Tone OFF
(2nd row) Boost 4 o'clock Tone 10 o'clock Volume 2 o'clock
and
(1st) Boost OFF Fuzz1 ON Fuzz2 ON Tone OFF Fuzz1 NOON
(2nd) Boost n/a Tone n/a Volume 2 o'clock Fuzz2 11 o'clock
but again, the fix'd side always taunts me, i'm always playing around with that side, while the musket on the other hand tends to stay where it is:
PREGAIN 10 o'clock MIDS 10 o'clock FOCUS 10 o'clock
FUZZ 11 o'clock TONE 10 o'clock VOLUME 2 o'clock
best tandom in the business, hands down