I bought a Bluebird Power rake last year, a p18 model. So today I see a guy power raking with a grass catcher on his power rake. So I asked some questions and it turns out you need the p22 model to attatch a bag, so I'm wondering (my dealers are closed right now) if my power rake can be modded to allow a bag to fit? and how ofcourse. When I bought my power rake from a certain dealer ship (biggest in town) last year they told me the bags don't work and take 4 man hours to install but the guy I actually seen working today was doing such a great job. I bought a friken lawn vacuum to use of the thatch and it turns out you don't need to do that if you have a bagger.