Switched my old Bridgestone over to a riser bar when i added the tag-a-long, the old 38cm drops just didn't have the leverage for low-speed handling with the rig and herself on board.
I'm an old XC guy, so straight bars are no big deal to me. It's nice having bar with just grips and brake levers on it; a refreshing change from the 'full battle rattle' of my commuter and the techy cockpit on my road bike.

Also been looking at changing up the bars on the road bike, too. I'm taking a look at gravel-style bars, with the shallow, flared drops and canted levers; they seem like they'd fit the way my hands and wrists want to line up on the bars than a conventional drop bar.