The document provides observations on areas of the Jisc WBL Maturity Toolkit that need further refinement and completion based on contributions from Swansea Metropolitan University to the Dewi project. It finds that the toolkit is inconsistent, incomplete in various criteria, and lacks authoritative evidence to back the guidelines. For the toolkit to be useful, it needs to be complete, consistent in its guidelines across criteria, and have authoritative evidence demonstrating successful prior implementations. The contributions from Swansea Metropolitan identified opportunities to improve the toolkit that could help its development.