Also I was hoping I could change the direction of this thread to avoid having to make another one. This is a reach/hand soreness question.

I've always had a reach problem on my bike, felt too stretched out in the hoods. We put a 90mm stem on my bike and i used to move my seat forward which ended up hurting my body. Finally I've got the rest of the bike set up perfect and don't want to move my seat or cleats at all. I already have a short 90 mm stem so I don't want to go any shorter, I was curious, is it possible to short the reach on a bike by swapping handle bars? I've basically had 3 spacers under my stem and have started to do the painful process of lower the bars for a more aero position since i do mostly shorter fast paced rides as of lately and have noticed some pain in my hands between the thumb and pointer finger.