+1 to them being fussy. If you over tighten the wedge digs into the bar which in turn prevents you from micro fine tuning the bar position. You'll only get big adjustments out of it. The wedges are prone to cracking as well as the from of the stem at the edges of the black Cinelli badge.
to remove bars you loosen the bolt them rock the bars back n forth and in n out to break the wedge free.
1R parts are expensive.