Hi, i've been going for 4 or 5 months,just domestics so far using just a carpet brush for aggitation and getting good results.I have got a pub wool patterned carpet coming up with 2 patches of black top about 3x3ft each(the rest of the carpet is not too bad).Is a carpet brush enough with some powerburst as i don't have time to buy sebo ect,as i a going on hols tommorow(touchwood) and the job is straight after.I know a place that hires rotarys cheap,but are they safe on a wool carpet with a shampoo brush.The guy that rents the rotary machines out thinks bonnets will be safer and do the job,but will bonnets make a difference to black top!cheers dave.