I didn't know about this until a few months ago.
Your (later) benefit increases 8 percent per year and it increases each month that you suspend.
This is obviously different than delaying your claim in the first place because of the timing, must be after FRA, before age 70, and your claim is already done, you just tell them to restart before age 70 or it will start automatically again at age 70.
If you can afford it, what's the downside?
Well if you're opting for Medicare Part B, you need to pay that directly rather than having it deducted from your social security.
Can You Suspend Social Security and Restart Benefits Later? (aarp.org)