The above tread was mostly intended for NEW clothing building.

With existing clothing, you will have to work around the limitations.
Use the new morph tools to fine tune your clothing once it is out of the fitting room.

Remark; 

• Before conforming new clothing coming out of the fitting room! -

1. Remove all Ik from the figure
2. ZERO figure
3. Conform your clothing to the figure
4. Fine tune your clothing with the morph brush if required, in this ZERO pose. (You only have to do one side, and mirror to the other side)

Test.
if OK? you are done.

if you get poking during posing.

1. ZERO the figure again.
2. Use the morph brush to adapt your clothing, and mirror to the other side.

Retest.

Why?
There is a problem with the morph brush to mirror its changes while the figure is posed and NOT in its true ZERO position.
You have to use the morph brush when the figure is at ture zero to mirror its changes.

No problem if you do not need the mirror function to use the morph brush on a posed figure/clothing.

Poser 1, 2, 3, 4, 5, 7, P8 and PPro2010, P9 and PP2012, P10 and PP2014 Game Dev
"Do not drive faster then your angel can fly"!