Hello Mel, A set of 718 AP1 irons with Tensei Red or AMT Red at standard length with a standard grip and wraps would be built to a swingweight of D1 unless otherwise requested. The 818 hybrid would depend on what shaft - the swingweight varies from D1 - D3.
There was a lot of confusion when we posted swingweights as players thought that no matter what shaft, length, grip or wraps they used, the swingweight would remain the same.
Whereas, with almost every change a player makes to their clubs, there will be a corresponding change in swingweight.

While Titleist's reason for not posting swing weights makes sense it would still be nice to see the target swing weight with a specific shaft and grip(with the gram weight of each) so that those who can make the necessary calculations for swing weight changes using optional shaft and grip combinations, shaft length changes etc. could do so.