Answers: its autosomal recessive ,means u own to have 2 genes to express it ,a shipper is a person next to one gene only
I'm not sure what you be going to by main carrier. It is a disease that must have two recessive genes contributed by respectively parent. So that makes a 25% risk for a child.
Check the connection I've attached and it will give you the likelihood for children based on home history. Even if you inherit one recessive gene you're still considered a carrier for a disease you may not hold. I am fairly particular genetic screening can help you identify the risk for your/father's risk.
I own no experience with this disease but a big interest contained by genetics.