Product and production design go hand in hand from the beginning. Quantity and surface area requirements have major influence on the choice of tooling.

Horse sense infusion advice and 3D Flow simulation (RTM Worx) will reduce risk.
https://youtu.be/Kj-RbFem7gM

Minor alterations in choice of materials can improve efficiency. Simple design adjustments will have a major effect on production efficiency.
https://youtu.be/XCNXto4bZDA