The tighter the shipping contract the less the complaints to the stallion operation. Various breeds have different requirements for recipient credentials. Consensus is that stringent rules are required for successful shipping and reciept of semen. The expense to the mare owner must be measured against the importance of the bloodlines. The wait on the mare end is excrutiating after the vet has made the call for semen.
Large problems occur on the mare end with recycling.
If the stallion is within a one day trailer ride, it might be cheaper to transport the mare. The board on semen is more than just the container. Shipped semen puts the pressure on to have the best mares. You have to have the mares because the bottom line is the thing that improves get. You no longer need the best stallion, now the competetion is to have the best mare.