As said in another thread I may be getting a metro hp walk 48 behind. I was wondering whether or not a trac vac will fit this mower. I have seen other guys using them but I have never used one. These are my about them questions... How do they work How much can you cut in 1-2 '' leaves before emptying How hard to install/ remove How much does a barrel full of leaves weigh How much do they cost Also would i be better off with a accelerator catcher. If anyone can answer any of these questions I would appreciate it. Thanks in advance.