At this moment, you can choose between 'country+weight' OR 'country+order total' OR 'fixed per country' for the shipping methods. If you hide a specific method for a product set (for example, we apply extra costs for package with a length more than 1200mm, 1800mm or 3000mm) then it will cause troubles in the basket if different types of products are added together because mix of items is excluding all the shipment methods. It would be great to be able to set different rules (for example a combination between weight and 'free shipment above 300 euros') and to have to option to SHOW shipping methods when a specific item from the product set is added (combined with the rule 'if more shipment methods are shown, show the cheapest / most expensive one' to prevent multiple or no shipment methods.