re interruptor brakes, I've grown very fond of mine that came with my Tricross. Didnt think I would but after a while realized how handy they are on rough downhills, making things a lot easier on the wrists and hands. With soft pads replacing the stock pads, the interrupters then became properly useable as the pad change improved braking power by a good amount.
I realize that they take up space and can cause issues with barbags etc, but I really like them and have grown used to being able to brake from all hand positions easily. I can see how new riders to dropbars will feel more comfortable with them, but I've been riding drops for a good 35 years and still found them handy whether in rough stuff, around traffic or even in a group of riders whilst on the tops.