Hello Sparkway: Haven't any experience (yet) with the Quickwall but do know about fiberglass insulation in a mix. Save it for your attic ! Don't waste an otherwise good mix by adding insulation. Been there done that and it does not work.
Packrat

Keep it Simple

No need to add the Fibermesh to your first project - or any other small project. If you use the basic ingedients Portland Cement, Peat Moss and Perlite and carfeully add water your project will turn out fine.
Later experiment with extra ingedients, like admix and Fibermesh, .....

You will get a better ( stronger?) projects if you concentrate on not using too much water and allowing the finished product to cure slowy.

LOL Mike

Speaking of mesh...........has anyone seen this, looks interesting to me.

Here is a link that might be useful: www.nycon.com