In an age of ever increasing model complexity and computational power, many new advanced methods that were inaccessible to paleo models are now becoming commonplace. Nonetheless, these approaches require significant resources and manpower for operation and development, and often are applicable to highly specific scientific questions. At the same time, simpler approaches can serve as test beds, and provide significant value facilitating ensemble simulations and statistical analyses that can illuminate the bigger picture. In this two-part talk, we will highlight several implemented and forthcoming model components that comprise our intermediate complexity approach to the simulation of the large ice sheets. We will also present recent examples of work performed in our group including estimation of the MIS-5 and MIS-11 sea-level contribution of the Greenland ice sheet, as well as glacial-interglacial ice-sheet dynamics.