Seein' as how the stock length of shocks on our bikes is 13 inches, Martin, and the reason I think you're still bottoming out might just be that 1/2 inch shorter in length you're runnin' with those 812s.
My suggestion is that you find out if whoever you purchased those 812s will exchange them for longer stock length 13in units.
If they won't negotiate with you about that, then the only other suggestion I have is that you make sure you have your preload set as firmly as possible before your wife jumps on the back of your bike and you take off down the road.
(sorry, actually I DO have one other suggestion for you Martin...to avoid any further last minute joint cancellation of plans such as the episode you described above about the missed rally, IF and when in the future your wife might walk out from your dressing room and then asks your opinion on the subject of the relative correlation between the appearance of a particular garment which she's wearing and the size said garment might give the impression to any passersby of a certain part of her anatomy...well ol' buddy, whatever you do...KEEP YOUR FRIGGIN' MOUTH SHUT!!!)
