Is it just me? I can't find any complaints about its suction power, but it doesn't have the same suction power as the originals. My old one is worn out. Instead of replacing the entire cleaning head, I only want to replace the gear parts. Before throwing away the old head, just make sure the suction power is the same as the old one. Update: The next time my part breaks (gear box this time), I'll definitely swap the part out. Not the whole head. Now, after cleaning the traces of the rumba, it's…