Yeah, I did miss the entire post, Gary made. I did look at it. I guess if I had looked for this before, I would not be asking now.
The set up is quite strong. I'm using 90 mm and 70 mm ss A2 bolts, as well as some oems. Why wouldn't it be strong? I have over 3k miles on the set up and I like it a great deal. There was nothing out there when I started thinking about this. I needed something that was much more up and back than the typical MCLs risers ... I still was uncomfy with those and the added Phil's wedges.
This set up is not for everyone. If you like the stock position, then you are good to go. I was not. If you like some risers and / or wedges that make you comfortable, then good. I still had wrist, hand, neck, back, elbow pain with these. It was not until I hooked these puppies up that I was breathing a sigh of relief. My riding buddy had the same smile and nodded 'yes' yesterday after an hour in the saddle. Even after 4 hours, he was comfortable for the 1st time. He rode with just the risers and some wedges I gave him. But, with my 'blocks', his pull back was considerable.
Anyway, these are as strong as oem.