Owning a vintage PUP, I may be one of the few who do not have a crank lift system. How many others still have the spring assisted lifts arms? The front arms don't seem very stable as they don't really lock like the rear solid arms do. Have any of you made or purchased braces for these? It wasn't a problem during our trip despite having teens bouncing in the front slide out bouncing around, but more for peace of mind. I'll include a pic for those who may not be famillar with this type system.