I had a fuji absolute that had flat bars and I changed over to drops. I had to buy new shifters and a better derailleur and I also changed the cassette 11-32 to get away from MTN bike gearing to road gearing 12-25 . I just got tired of riding in the wind in the straight up position. Before I switch bars I purchased a T-2 areo bar and mounted it . This helped on the flats but I still had problems on winding roads and with the club who would not allow me to used them while I was with them. I rode for a month or so on the coverted
hybrid. The next month it was for sale on "Craigs list" and I then went and purchased a Roubaix. Best move I ever made was to add those drops to that bike and see the diffrence drops had over flat bars even though it cost me a bit of money after I realized it.