Frequent (borderline aggressive) cleanup generally results in more stable performance, while delaying that can result in higher peak performance at the expense of much lower worst case performance. (anandtech.com)
In particular, he stressed the importance of having solid data and reliable evidence of stable performance in your desired real estate market, prior to investing. (homeunion.com)
The reason for such an extended game was to observe fairly stable performance over time. (sciencedaily.com)