Originally Posted by Charlie Quatro
Wow! The way your bike is currently set up I can't see you having much weight on your rear end at all. I'm 6'3" 210 lbs and was having the opposite problem- too much weight on my hands.
With the saddle adjusted to where I wanted it I couldn't get the stock stem on my Breezer high enough to get more weight on my rear end so swapped it out for a Nitto Dirtdrop from Rivendell. Also, changed the saddle to a Brooks B67 which was a major improvment in comfort over the stock saddle.
If it was my bike, I would swap out the suspension seat post and stock saddle to a sprung Brooks.
Here's a pic of my Breezer-
I still get a little tingling in my left hand but I'm going to leave it as is as its otherwise very comfortable and a pleasure to ride.
Charlie's bike setup is what I would recommend the OP try. Changing out the seat post like Charley did would also solve the excess springiness of the original which is causing the OP grief.
Charley also brings up the valid consideration that carrying too much weight on your hands and wrists is not necessarily the comfort route. After all, which is better adapted for sitting, your hands or your butt?