Dynamic cloth requires a ton of patients.  Have something else you can be doing while the sim is running.   It's probably going to be an all-day event of tweaking if you aren't lucky.

 

It can get very good results, but there's a lot of time involved.

WARK!

Thus Spoketh Winterclaw: a blog about a Winterclaw who speaks from time to time.

 

(using Poser Pro 2014 SR3, on 64 bit Win 7, poser units are inches.)