Thanks a lot, Tobes. Your input is most appreciated. Clearly, your experience has to be interpreted within the context of your basically analog/tube system,your speakers, your room, and within the frame of your very own preferences regarding sonic attributes.We both can have the exact same sonic attribute preferences but differences in our system components and room may warrant different tunig/tweaking, be it tube rolling or capacitor rolling, and any resulting possible combination of both, whether at the phono=pre, the preamp, the power amp, or any of the sources...not to mention the cable thing...maddening, isn't it!! I gather that if I combine your findings and advice with Upscale Audio's current promotional literature for the SLP-98 Formula 1 Edition (reading between the lines), the way for me to go is no coupling capacitors at all(the cheapest alternative!): http://www.upscaleaudio.com/cary-audio-slp-98l-formula-1-edition/
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The F1 version will have the all features listed above. Factory-upgraded capacitors, hexfreds, and wiring. Next, we can get yours either with coupling caps or direct coupled. The typical SLP 98 you have read about in reviews has coupling caps. If you make it direct coupled, you will get more pop and snap at the top and bottom and the preamp will be extremely fast. While still tube, it will give you better bass slam. Better than any solid state preamp and will kick the snot out of these $10,000 "reference" preamps from other companies. Want a smoother, more textured sound? Keep the[oil] coupling caps and you will be in heaven.
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Funny, Tobes, I think what you call "artificially soften transients/veiling," they call it "smother, more textured sound." Positive language,no doubt, for those that don't see any nagatives in such preference.