I am building a ultralight eastport pram dingy and have cut the rails out of mahogany.  There are 2 rails 1/2" thick that get laminated along top of boat.  They rails seem stiff and dont want to easily bend to floow the top shape that curves in both vertical and horizontal.  Would steaming these help make them bend easier or is there another trick?  The seem on the verge of cracking when i just bend them around side of boat and dont bend them in vertical direction to match shape along top.