It's a tricky one to make :) believe me I've made a few.

I used Poser File Editor 3 by Dimension 3D to delete all the morphs, it's real quick takes no time at all and is a marvelous editor with lots of handy functions for Poser stuff.

While that would normally be it, you may find that on her leg parts (even though she is at zero pose) some of the rotations (xrot, yrot and zrot) are not zero.  This only shows up when you use it to make a new conformer.  At which point conforming to Alyson 2, your nice new clothes go nuts around the legs.  It took me a while to track them down :) but all you have to do is set any non zero values in the previously mentioned rotation channels to 0.

Hope that helps :)

John.

Fugazi (without the aid of a safety net)

https://www.facebook.com/Fugazi3D