The GP is calling this a 72-month hold in the base case and a 60-month hold in the summary deck, and those are not the same offering.
I have seen this often enough that I now treat the hold period as a variable rather than a given, and the difference in what it does to a preferred return calculation is substantial. Take a deal with a 7 percent cumulative pref on a $100,000 commitment. At 60 months you have accrued $35,000 in preferred return before the promote kicks in. At 72 months that number is $42,000. If the projected exit proceeds stay the same in both scenarios, the sponsor's promote shrinks in the longer hold, which means a sponsor presenting the 60-month version is showing you a more favorable promote picture than the 72-month reality might produce, and an LP reading only the summary is underestimating how much the pref has to be satisfied before the split runs. The number doing the most work in almost every waterfall I have read carefully is not the split percentage, it is the hold assumption the split is applied against.
The place it gets worse is when the offering uses a non-cumulative pref. There the accrual question disappears, and a longer hold that produces thin operating cash flow simply leaves preferred return unpaid with no catch-up at exit. A 72-month hold with a non-cumulative 7 percent and two years of sub-pref distributions is a meaningfully different position than the deck implies when it leads with the exit multiple.
What I want to ask this room: when you find a hold period discrepancy between a summary and the actual operating agreement, do you treat it as a drafting error worth clarifying, or does it shift how you read everything else the sponsor has sent you?