How is Supratek Chardonnay compared to Cary SPL-98


I am currenly using a PrimaLuna Prologue 3, McCormack DNA-1 and B&W CDM9NT speaker.
Cary SLP 98 is one of the highly praised preamp and is always on next list when i am ready to upgrade. Recently, I learned about Supratek and read the rave reviews. Anyone used both can share how they compared?
And how are these 2 compared to the Prologue 3 I am using? They are about double the price, I wondering if it is worth the difference.

Thanks.
gte357s
I owned the Supratek Syrah,which as I understand is similar in performance to the Chardonnay excepting that it has a phono stage.It replaced the Cary,in my system it was simply better a pre amp.
I've owned a Cary SLP98P for over 2 years now. With the right amp (Cary CAD 120's) there's no need to upgrade to the SLP 05, it's that good.
Thanks for all the replies.

Markwatkiss, which Cary model are you replacing with the Syrah?

And all the comments are true. I am concern on the warranty as well that I may need to ship back and forth. All these things contributes to one thing I notice. There is a bigger demand on the Cary and they are sold quite fast.