Old thread, I know, but I thought this would be a good place for the video.
When I choose a significant off-ding it's usually because of a major slope and I want my ball to stop near the hole.
IMO I can judge the off-ding on my Ghost Spider L92 better than my O. Versa L97 but maybe I just haven't used the 97 enough to know its forgiveness, etc. Some say that the Versa 97 is a 'ding putter' and I understand that viewpoint.
Sometimes I won't move the aim off the hole, usually I'll move it right some, and sometimes I'll move it left a little (rarely) , it's all about the situation and the instincts you feel about how big the slope is, or how hard you will hit, and how hard you will off-ding.
"This is to avoid a roll away on a green with a strong tilt. If the typical method cannot judge the power and/or aim accurately, the off-ding push may be a method to perfect. Even if the putt misses, the 'spin' will stall the ball nearby. The aim will depend on the slope, power applied and how much you intend to miss the center 'ding'. Generally, you may need to add some power because of the off-ding."
If the green speed is slick, like Champ greens, etc. I may choose to miss the ding significantly and adjust aim because I want a major 'spin' on the ball to keep it from rolling after it's been struck. This will take trials to learn how much power is needed to add, and to observe how the ball reacts on the big slope with a large 'push' or miss-ding right.
The off-ding effects of a 'push' (past ding) against a slope R-to-L compared to an off-ding 'pull' (pre ding) against a slope L-to-R seem to be somewhat different so if you choose to apply the method be sure to observe the difference during trials.
Many suggest that the Daytona Rossa L55 is great for off-dings and I might get one in the future. The TM Spider L92 is working out for off-dings for me. I had it for a while.
Note: the putt in the middle of the vid was around the ding and it rolled down the slope, several feet away, the miss-ding stays by the hole.