The authors have presented an interesting paper demonstrating the mechanisms influencing the lateral extension and vertical movement of fill slopes of compacted fill embankments resulting from the presence of expansive soils within these embankments and the resulting distress features that occur with structures such as fences, swimming pools, and patios. These structures are particularly associated with residential housing and are often situated in close proximity of the crests of slopes for the view and privacy that such locations offer. Further, a procedure was recommended to calculate the lateral heave/settlement and lateral movement as a function of the slope’s geometry and the soil’s vertical and lateral swellcollapse and settlement characteristics, the fill’s oversize fraction, and degree of wetting of the soil. These findings are no doubt of particular importance and relevance to geotechnical engineers, land developers, and homeowners dealing with soils that are known to be expansive because they can assist in the logical establishment of design criteria for the foundations of structures to be founded on, within, and in proximity to slopes composed of these soils. The authors’ work relates to deep sloping expansive clay fills in the order of 10 m or more, often associated with fills in the state of California, but also relevant to similar heights of fills in other geographical locations, where expansive soils exist. Noorany (2013) has provided in detail the procedure required to determine the lateral fill extension (LFE) procedure, which involves triaxial testing of compacted samples, determination of extent of wetting, and determination of displacement using the finite-element code. Although the procedure is logical in nature, it requires a geotechnical engineering company to possess the requisite testing facilities and caliber of staff to undertake this work, which unfortunately may not be the norm for many smallto medium-sized geotechnical companies and could lead to excessive and prohibitive costs that may not be attractive to a homeowner or residential developer. The result would be that the engineering company could lose the assignment to a competitor because of engineering costs that are too high. Although the intent is not to downplay the importance of the authors’ technical development of the subject, this is a reality of the geotechnical engineering practice because residential developers and owners often adopt the wait-and-see approach and are willing to pay the price to remedy adverse situations if they do develop, depending on how serious they are. However, such costs can often be far in excess of the costs for a sound and detailed initial geotechnical investigation. At this stage, litigation forms part of the process because it is expected that the engineering company should have been cognizant of the soil conditions and made the appropriate recommendations. The authors have recommended mitigation effects of LFE, including use of nonexpansive and treated soils to build the slope within the LFE established zone. As well, designs can be done using carefully planned hardscape-landscape layout with bands of vegetation parallel to the slope and with segmental hardscape with pavers that will accommodate lateral stretching. The preceding recommendations require, therefore, that careful attention is paid to the types and characteristics of the soils that will be used in the grading operation and in their placement. As a first step, this would require the evaluation of the potential expansiveness of the soils. This aspect has not been addressed by the authors, assuming perhaps that this characteristic would be known. However, this would be an important attribute because differences of behavior would result in soils that exhibit, for example, low, medium, high, and very high swelling potential. Chen (1988) provides some of the basic information on expansive soil identification as well as the design of foundations to be built on such soils and the remedial measures resulting from distress to structures. Such information is of practical value to the practicing engineer, and a useful extension would be the incorporation of the LFE method in a simplified manner, if possible.