Sure, Chockman.  Dr. Lin first used a flat-end 'hypodermic needle' inserted
into the penis to see if he could force liquid into the bladder from the
penile opening, and when he met resistance, he knew that there was something
in the way.  He then used the same instrument to administer a topical
anesthetic.  After a couple of minutes, he tried a simple dilation to see if
he could locate the problem without a scope, and he was able to feel the
scar tissue (as was I) partially blocking the urethral neck, so no scope was
necessary--did it all by 'feel, both his and mine.  Inserting a
double-bladed cutting instrument into the hollow dilation tube, he cut the
scar tissue away gradually, as he inserted larger and larger tubes.  It was
mildly uncomfortable but not painful.  The whole procedure took about 5
minutes.  He did say that I'd experience some minor bleeding (which I did,
but done by this morning), that it might take a few days for the flow to
return due to minor swelling or irritation of the area, and that it might
take another dilation to complete the job if there were any further
problems, so I'm scheduled for a follow-up on Apr 5.  But so far, so good.
Hope that helps.

Vince