Hello everyone i started a small project last week with oak.I prepared the boards to 20mm from 26mm thick rough sawn boards glued 2 90mm boards together using biscuits to achieve a 180mm width and i went to them tonight to find it has cupped pretty badly the overall size is 20mm x 180mm x 300mm do i need to work with this sooner to prevent it from cupping so badly? it is not quarter sawn oak but i did not think it would cup so soon. :?