My question is just a tad embarrassing so NO LAUGHING!

The manual says the max cargo and passenger weight is 408 pounds. My beautiful bride is about 140 pounds and her big fat ass husband is 310 pounds. Obviously when we ride 2 up we are over the weight limit by roughly 40 pounds ( depending on how many doughnuts I had that day). We don't carry a whole lot of stuff in the saddle bags or trunk but let's add another 20 pounds just for the sake of argument. So that puts us at roughly 60 pounds over the Maximum weight listed in the owners manual. Now I am fully aware that all manufactures of anything that has a max weight listed has put some buffer room in there. So the big question is are we safe to be riding with those weights? I raise the air close to the max of 57psi when we ride together. So other than the obvious lose some weight fat ass, what do you guys think? Are we cool?
I just bought the bike about a month ago so I am still getting familiar with it (I've been riding an 82 GL1100 Interstate). I put progressive shocks on the 82 a couple of years ago and they sure made a difference in the riding comfort. I don't know if this new one has the progressive shocks or not yet. What's kinda weird to me is that when you take a quick look at the rear, the right side looks like any old other shock I've seen but on the left side, it's just a spring. Is that normal?
What say you?! LOL