Just finished up a 6spd for a guy, c1 pack came out way tight on clearance at first (.055) with the parts Alto sent. Wondered if anyone else has ran into this? Usually have good luck with the carbonite packs
.080 is fine in the C1. It will compress.
for 6 speeds the .105 apply and .400 backing usually come out perfect with altos. Like mike said .080 is fine even.