most attach the backpacks to a trolly carrying by the lid would be a nightmare if you were doing this i would recomment the wcw ones as they are an easy carry, but i prefer to put on a foldable trolly
When time allows I may swap all the parts over on to my old wcw one, but in hindsight I would have spent a bit more and bought a new wcw one or similar so I didn't have to waste time doing this.
Trolleys are a good idea, if you don't have to carry down stairways through terrace houses, but unfortunately I usually have to, and if it was on my back I'd be scraping walls, knocking pictures down and plants over
It's my own fault really for choosing this model ( I could see what I was buying )
guess the lesson I have learnt is think how you are going to use something before buying it