Dear Markus,

It is good to hear from you.  However, you focus a lot of attention on
some obvious points that nobody disagrees with, while minimizing other
more important issues.

Nobody is trying to dictate the research that others can or cannot pursue.
You and your group are certainly free to make weekly inter-technique
combinations regardless of my opinions.  That is obvious.

The central point that you continue to ignore is that others are not equally
free to pursue a research direction we believe is more significant -- namely,
to study meaningful longer-term combinations.  We cannot do so within the
CPP context because the necesssary solutions are not available.  (No, a
few months is definitely not enough!  And interpolating EOP rates from
weekly samples is simply a waste of time, though you are clearly free to
try it.)

At Nice, not a single person spoke against the idea of collecting more
long-term solutions, not even you.  I think everybody there got the 
impression the IERS would request such solutions, as envisioned from the
beginning in the CPP CfP.  It is now apparent that you never intended to
do that!  Meanwhile, we have been patiently waiting for this request to be
fulfilled.

So, while you are not limited, we are (at least using the CPP solutions).
And your decision to do this was made without any consultation or even
communication.  That is simply wrong and undermines the whole idea of
a cooperative project.

Sincerely yours,
--Jim