Grado only has about 18 employees. Go to their Contact Us Page, fill out the email form with your question, and sent it off. You will probably get the most reliable and definitive answer within a week or two.
When you looked at the stylus under the loupe, was the tip completely clean? The stylus can easily accumulate baked-on gunk that would drop transparency and detail significantly. It can also be affected by setup--stylus rake angle (SRA) and vertical tracking force (VTF).
I don't know what the shelf life is for the elastic suspension, but this *is* a 39-yr-old stylus. If the elastomer has hardened up over time, you would lose detail compared to a new one. As to whether a new stylus would work the better or same with the Signature body or your Gold one, I think only somebody at Grado would know for sure, though perhaps somebody at LPGear would know as well, since the new XTZ stylus is an exclusive special order from them.
When you looked at the stylus under the loupe, was the tip completely clean? The stylus can easily accumulate baked-on gunk that would drop transparency and detail significantly. It can also be affected by setup--stylus rake angle (SRA) and vertical tracking force (VTF).
I don't know what the shelf life is for the elastic suspension, but this *is* a 39-yr-old stylus. If the elastomer has hardened up over time, you would lose detail compared to a new one. As to whether a new stylus would work the better or same with the Signature body or your Gold one, I think only somebody at Grado would know for sure, though perhaps somebody at LPGear would know as well, since the new XTZ stylus is an exclusive special order from them.