FUBUKI driver shaft puzzler

[mikeb4]

Help ! What is the difference between a FUBUKI z50x5ct and a FUBUKI zt50x5ct ?

Not sure what the 't' means ?

Maybe one of these Reg Driver shafts succeeds the other one ?
Can't see anything on google either !

Any assistance appreciated !

 

[Foxholer]

ZT (Zeta Tour) is slightly lower launch and spin than Z (Zeta).

Both shafts 'current'.

ZT 50 was the shaft that gave me best figures at a Kings of Distance day (I need a bit of help with lowering spin!). Not the feel I like, but solid/stable for a 50gm shaft!

 

[Imurg]

The Z was standard on the 2014 Big Bertha, the ZT was standard on the 2014 Big Bertha Alpha.
ZT suits a stronger swinger.

 

[USER1999]

Are you sure the T version doesnt suit someone who swings both ways?