Heyo, I'm a n00b on the site, but I've been riding a Ural since 2016. Sidecars shouldn't pull much, but because of physics, the yaw of the bike will occur primarily with acceleration and deceleration. This will be magnified when the sidecar is loaded because of inertia. Ural's brakes on the sidecar will mitigate that a good bit, but not entirely. It's just physics. I wish I could recommend a sidecar training group. I've been trying to find one in Portland, but they stopped doing it a few years back for some reason. Most of my skill (what little there is) was reading and then trying it out. And just like 3leg said, once you start riding a hack, you never go back. I love the feel of a solo bike, but having the ability to drive like a bike but still take a second (or even third) person and some luggage (or beverages) is just amazing.