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I have been engaged in a debate about the "superiority" of LP over CD
over at headfi.org, I more or less dropped Vinyl in 1984 when a first
gen silent 14x4 Marantz CD63 replaced my noisy Rega Planar 3 and havent
really listened to vinyl at all since 1998, so I admit a preference for
CD upfront. To me the measured stats (SNR/DR/FR/THD/Speed stability)
all seem to make the CD case (pun) pretty strong but some contend that
LP has some technical advantages and I am interested in how true this
is.

One topic that came up was that LP (supposedly) has a better transient
response than CD. I was somewhat skeptical that this was the case but I
am open to be convinced. As I understand it this refers to a finite lag
before either system can response to rapidly rising or falling
frequencies viz transients. AFAIK a good top flight MC cart will have a
transient rise time of about 7 or 8 microseconds while CD is somewhat
slower at around 23 microseconds thus LP is theoretically better at
dealing with decay and such - does this make any audible difference in
practice, both have finite lags I would not have thought that 16 x 10
to the minus 6 seconds would be a perceptible difference, or have I got
this all wrong ?

How would one go about measuring this in any case ?