Preamp Output Capacitor: Mundorf Supreme vs. Supreme Silver Oil


Anyone compared the bass response of these two caps?  I bought the Supremes for trial purposes and really loved what they did to my system's imaging (front to back layering) and immediately bought the Silver Gold Oil Supremes.  Unfortunately while they were smoother, more beautiful, and even better at imaging, they had no bass (actually, they lost bass as they broke in).  Anyone know how the Silver Oil's fit into the line?  

I'm using them in a Don Sach's DS2 Preamp ( https://systems.audiogon.com/systems/7983).  

Thanks.
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@atmasphere Yeah, I had them in the pre for a couple months of daily listening... would still love to try the cutf and odams.
@alexberger I had the duelund silver bypass caps in my coincident Frankenstein’s (but only over the stock solen coupling caps) and really liked them. Could not hear any difference over the stock output caps in my pre though and sold them...
I have used and continue to use the Duelund silver and Sn-Cu bypass caps. Both are great. I find the Sn-cu, like the main Sn-Cu cap, are the best caps out there. They are simply beautiful sounding with all the detail and openness one could ever want, but served up in a natural and unforced manner. They also have great body and weight which is my only knock of Teflon caps which can sound colder and a tad leaner. 

The Vcaps have a sound as all caps do. I am also trying the combo of ODAMs bypassed with Vcap CuTF. I don’t expect them to sound as good as the Duelund Sn-Cu, but we will see. I am sure this combo will deliver clarity in spades, but will that have that wonderful tone and beauty of the Duelund Sn-Cu? I have my doubts.
Yeah, I had them in the pre for a couple months of daily listening... would still love to try the cutf and odams.
The Cutf is really the only part we've been playing for some years. My comments are based on them. We installed the ODAMs in one of our preamps (UV-1) and they were quite nice.

@grannyring please do report back. Looking forward to hearing the outcome.