Lost > 100 lbs and now have an "apron" on my abdomen. Is it preferred to have CoolSculpting before or after abdominoplasty?

Congratulations on your weight loss Jeff! CoolSculpting will not treat the excess loose skin which results after massive weight loss. You will be better served by an abdominoplasty. Liposuction of any areas of fat can be done during your surgery. Hope this helps answer your question.

CoolSculpting can reduce fat but will not take care of excess skin on the abdomen.  If you are planning on having an abdominoplasty, the excess skin and fat can be addressed at the same time during the procedure, so you shouldn't need to have CoolSculpting done.