Primaluna EVO 400 vs. stock Cary SLP-05 preamp?

Decided on the SLP-05 Ultimate Upgrade. The preamp is on its way to Cary.
 In its place I’m using a Formula 1 modified Cary SLP-98P.  To my ears, the mod’d 98P sounds better than the stock SLP-05. I’ll report on the mod’d 05 after I receive it.

The Cary Audio SLP-05 Ultimate Upgrade is complete. Haven’t done extensive listening yet, but initial impressions are very good. It’s at least as good as the Formula 1 SLP-98p, and seems better in some regards. Very tight bass, providing a good foundation fot the music. Great imaging. Very sweet vocals.
Worth the money to me. If you can afford the preamp, go for the upgrade.
BTW, Cary has significant sale prices on both preamps.

Sorry. My previous preamps were all pretty vintage. ARC SP6, CJ PV-7 and others. Currently using integrateds in another system. Absolutely love the Manley Stingray II, but it’s hard to compare to the Cary, since the room and other components are so different.
I would consider the PL Evo 400 or the Zesto preamps if I were buying now. Heard them both at dealers, and was very impressed.