Spiritofmusic, since the standard ruby/OCL retip allows superb tracking performance in my Phantom I can't see any reason for the extra compliance mod (for my setup). I track my 103R close to standard, at around 2.3-2.4g, because I think it sounds best there.
The Midas aluminium body makes the 103 fairly heavy (14.5g) and cartridge resonance in already at the low end in my Phantom. In an arm with a lower effective mass the (higher) compliance mod might be of benefit - but I couldn't say.
I don't think the potting of your Zu will effect its ability to be retipped as it has to be well clear of the cantilever assembly.
Value for money the SS retip would be very hard to beat - that is not to say its the best out there (obviously) - but I have zero inclination (for now) to seek out anything else.
The Midas aluminium body makes the 103 fairly heavy (14.5g) and cartridge resonance in already at the low end in my Phantom. In an arm with a lower effective mass the (higher) compliance mod might be of benefit - but I couldn't say.
I don't think the potting of your Zu will effect its ability to be retipped as it has to be well clear of the cantilever assembly.
Value for money the SS retip would be very hard to beat - that is not to say its the best out there (obviously) - but I have zero inclination (for now) to seek out anything else.