anyone with both seats, would like to know the difference in sitting position between the two, if the 2up sits higher or if the 2up pushes you forward and how much, have a solo now and thinking of getting the 2 up for a second seat,

 

The 2-up will put you more forward.... and the passenger slightly higher...(Not much)

Myself....Was rather dissappointed with both! (Damaged my Tins) ...doing it all over again, take a look at the mustang seats.
The the solo (wide classic) is like being on a "lazy-boy" (Very nice for the long haul)! the 2-up, (Likewise) and, not so crouded. Just me....
I'm sure there are many more thoughts on this. (Depending on your $$$)

I hope this helps!

Best wishes....Tim(HT)

 

My Sundowner two up moved me up and forward just a fraction. At any rate better by far than the stock.