Reply from Glen,
<p>
Still looking into this- the only problem is with the QD0/QF1
multipoles- mainly the sextupole component. If the multipoles are added
with an otherwise perfect lattice- effect is to blow x and y IP sizes up
(y size becomes ~90nm). I tried to re-match the sextupole strengths to
reduce the usual 2nd order terms at IP, but this didn't make much
difference in the tracking simulation (despite MAD claiming IP size was
ok)- must be higher order terms, and therefore need full FFS design
process...
<p>
As you can see, if I just run the tuning simulation anyway it seems to
largely compensate for this, but not perfectly...
<dl>
<dt>Q 1: Does the tuning include multi-pole (non linear, strength of sextupole)
 knobs?
<dt>A 1: yes

<dt>Q 2: Is the tuning simulation done only without multi-pole fields? Then add multi-pole after the tuning?     Or,  Is the tuning simulation done with multi-pole fields?
<dt>A 2: done with multi-pole fields
</dl>