Markel, Sorry to hear about your bad experience with CSMC. Reading your post is just a another confirmation of my experiences with them. I've came to the conclusion that by the way they conduct business CSMC is a less than an honorable company to deal with. It's not that you won't get your product or money from them, it's just going to be a very frustrating experience along the way when dealing with them.
After a rocky Parker Repro. 16ga barrel deal, two RBL PIF orders & cancelling my RBL 28ga order just to have to wait five weeks for a refund. I've decided it's best for me to never do business with them again.
With that said. I will add that I've unfortunately came to the conclusion that CSMC is not alone in not paying for shipping on returned items. I have never been able to get a refund for return shipping from any gunsmith or long distance gun deal's I've ever made. Because of this I am now very carefull about what I do when it comes to buying from someone long distance. I always keep in mind that if the deal goes astray, I'll be out the shipping cost's both way's. Like it or not this is just a fact of life when doing these kind of deals.