For any retrofits applied to the existing structure, you may deviate from the dimension limits of the Design Guide in order to simulate a real retrofit technique. When considering a BRBF-type member, you may choose to stray from the dimension limits for the entire composite member or for each of its components, but please provide justification for how this would relate to a real BRBF and/or how it could be constructed in a physical balsa wood tower. It may be more appropriate with BRBFs to adjust the material properties rather than go outside the dimension limits.