@alexberger
To answer your question on Duelund JDM ( tinned copper I have ) vs the old RS ( Alexander ) :
I have installed both in the Dynaco vta ST-70 board. One is the CCS and one is the original 12AU7 driver circuit.
They both sound identical with very similar tonal quality.
I have not broken in the JDM yet. Based on the initial impression, the older cap seems to have more punch in bass, whereas the JDM seems to have cleaner mids.
Roy from VTA suggested using V-Cap ODAM. Based on your experience,
Is the V-cap ODAM a darker tone than the Duelund?
I have yet to try TrueMax Copper ( the capacitor leads are too thick to fit the circuit board ) and Miflex, but I like the JDM tinned as it sounds the most natural. I was listening to Jazz and vocals.