Weight of wireless is ridiculous to talk about...
Batteries and signal loss are more the issue.
The design is cleaner which is a plus.. Easier to clean the bike and less zip-ties to collect dirt...
Also wired-computers is notorious for stopping in wet conditions because the wire is a weak point for water entry...
However after using wireless for several years and trying various different brands... I thought I had it licked the problems til I got an hid... so now given up... Now going to go back to wired...
Only problem I have now is my bike is an S&S foldable.. So either I must always take the computer off (lots of time and wire wrapping/unwrapping which could break the wire) or I must figure out a way to break and reconnect the wire...
Now the SON is also going to give wireless problems? I think I'd have to say consider going back to wired if possible...